diff --git a/dev-packages/application-manager/package.json b/dev-packages/application-manager/package.json
index e82dcf7623598..ac9e0f2a625eb 100644
--- a/dev-packages/application-manager/package.json
+++ b/dev-packages/application-manager/package.json
@@ -45,7 +45,7 @@
     "source-map-loader": "^0.2.1",
     "source-map-support": "^0.4.18",
     "umd-compat-loader": "^2.1.1",
-    "url-loader": "^1.0.1",
+    "url-loader": "^1.1.2",
     "webpack": "^4.0.0",
     "webpack-cli": "2.0.12",
     "worker-loader": "^1.1.1"
diff --git a/package.json b/package.json
index 8c65a2b0573cf..cc15b7fe0b661 100644
--- a/package.json
+++ b/package.json
@@ -22,10 +22,11 @@
     "chai": "^4.1.0",
     "chai-string": "^1.4.0",
     "concurrently": "^3.5.0",
+    "cross-env": "^5.2.0",
     "electron-mocha": "~3.5.0",
     "ignore-styles": "^5.0.1",
     "istanbul": "^0.4.5",
-    "istanbul-instrumenter-loader": "^3.0.0",
+    "istanbul-instrumenter-loader": "^3.0.1",
     "jsdom": "^11.5.1",
     "lerna": "^2.2.0",
     "mocha": "^3.4.2",
@@ -46,8 +47,9 @@
     "webdriverio": "4.9.2"
   },
   "scripts": {
-    "prepare": "yarn prepare:travis && yarn rebuild:clean && yarn build:clean",
+    "prepare": "yarn prepare:travis && yarn prepare:hoisting && yarn rebuild:clean && yarn build:clean",
     "prepare:travis": "node scripts/prepare-travis",
+    "prepare:hoisting": "node scripts/check-hoisting",
     "build": "run build",
     "build:clean": "run prepare",
     "docs": "run docs \"@theia/!(example-)*\"",
diff --git a/packages/core/package.json b/packages/core/package.json
index 0d4da049f1e14..d2867f795038a 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -16,9 +16,9 @@
     "@types/react-dom": "^16.0.6",
     "@types/react-virtualized": "^9.18.3",
     "@types/route-parser": "^0.1.1",
-    "@types/ws": "^3.0.2",
-    "@types/yargs": "^8.0.2",
-    "ajv": "^5.2.2",
+    "@types/ws": "^5.1.2",
+    "@types/yargs": "^11.1.0",
+    "ajv": "^6.5.3",
     "body-parser": "^1.17.2",
     "electron": "1.8.2-beta.5",
     "es6-promise": "^4.2.4",
@@ -40,8 +40,8 @@
     "vscode-nsfw": "^1.0.17",
     "vscode-uri": "^1.0.1",
     "vscode-ws-jsonrpc": "^0.0.2-1",
-    "ws": "^3.0.0",
-    "yargs": "^9.0.1"
+    "ws": "^5.2.2",
+    "yargs": "^11.1.0"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/keymaps/package.json b/packages/keymaps/package.json
index de4596982de4a..37f5d66af91bb 100644
--- a/packages/keymaps/package.json
+++ b/packages/keymaps/package.json
@@ -8,9 +8,9 @@
     "@theia/userstorage": "^0.3.15",
     "@theia/workspace": "^0.3.15",
     "@types/lodash.debounce": "4.0.3",
-    "ajv": "^5.2.2",
+    "ajv": "^6.5.3",
     "fuzzy": "^0.1.3",
-    "jsonc-parser": "^1.0.1",
+    "jsonc-parser": "^2.0.2",
     "lodash.debounce": "^4.0.8"
   },
   "devDependencies": {
@@ -21,9 +21,11 @@
   "publishConfig": {
     "access": "public"
   },
-  "theiaExtensions": [{
-    "frontend": "lib/browser/keymaps-frontend-module"
-  }],
+  "theiaExtensions": [
+    {
+      "frontend": "lib/browser/keymaps-frontend-module"
+    }
+  ],
   "keywords": [
     "theia-extension"
   ],
diff --git a/packages/keymaps/src/browser/keymaps-parser.ts b/packages/keymaps/src/browser/keymaps-parser.ts
index 2570228e5f4bc..4cbd943950dc8 100644
--- a/packages/keymaps/src/browser/keymaps-parser.ts
+++ b/packages/keymaps/src/browser/keymaps-parser.ts
@@ -58,7 +58,7 @@ export class KeymapsParser {
         const bindings = parser.parse(strippedContent, parsingErrors);
         if (parsingErrors && errors) {
             for (const error of parsingErrors) {
-                errors.push(`${parser.ParseErrorCode[error.error]} at ${error.offset} offset of ${error.length} length`);
+                errors.push(`${this.printParseErrorCode(error.error)} at ${error.offset} offset of ${error.length} length`);
             }
         }
         if (this.validate(bindings)) {
@@ -72,4 +72,27 @@ export class KeymapsParser {
         return [];
     }
 
+    // https://github.com/Microsoft/node-jsonc-parser/issues/13
+    protected printParseErrorCode(code: number | undefined) {
+        switch (code) {
+            case parser.ParseErrorCode.InvalidSymbol: return 'InvalidSymbol';
+            case parser.ParseErrorCode.InvalidNumberFormat: return 'InvalidNumberFormat';
+            case parser.ParseErrorCode.PropertyNameExpected: return 'PropertyNameExpected';
+            case parser.ParseErrorCode.ValueExpected: return 'ValueExpected';
+            case parser.ParseErrorCode.ColonExpected: return 'ColonExpected';
+            case parser.ParseErrorCode.CommaExpected: return 'CommaExpected';
+            case parser.ParseErrorCode.CloseBraceExpected: return 'CloseBraceExpected';
+            case parser.ParseErrorCode.CloseBracketExpected: return 'CloseBracketExpected';
+            case parser.ParseErrorCode.EndOfFileExpected: return 'EndOfFileExpected';
+            case parser.ParseErrorCode.InvalidCommentToken: return 'InvalidCommentToken';
+            case parser.ParseErrorCode.UnexpectedEndOfComment: return 'UnexpectedEndOfComment';
+            case parser.ParseErrorCode.UnexpectedEndOfString: return 'UnexpectedEndOfString';
+            case parser.ParseErrorCode.UnexpectedEndOfNumber: return 'UnexpectedEndOfNumber';
+            case parser.ParseErrorCode.InvalidUnicode: return 'InvalidUnicode';
+            case parser.ParseErrorCode.InvalidEscapeCharacter: return 'InvalidEscapeCharacter';
+            case parser.ParseErrorCode.InvalidCharacter: return 'InvalidCharacter';
+        }
+        return '<unknown ParseErrorCode>';
+    }
+
 }
diff --git a/packages/preferences/package.json b/packages/preferences/package.json
index 1e3690af82930..a0317e5a8901a 100644
--- a/packages/preferences/package.json
+++ b/packages/preferences/package.json
@@ -11,7 +11,7 @@
     "@theia/workspace": "^0.3.15",
     "@types/fs-extra": "^4.0.2",
     "fs-extra": "^4.0.2",
-    "jsonc-parser": "^1.0.1"
+    "jsonc-parser": "^2.0.2"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/process/package.json b/packages/process/package.json
index 450e20622efd7..23bebbf2b009b 100644
--- a/packages/process/package.json
+++ b/packages/process/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "@theia/core": "^0.3.15",
     "node-pty": "0.7.6",
-    "string-argv": "0.0.2"
+    "string-argv": "^0.1.1"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/task/package.json b/packages/task/package.json
index 0c3ee74d7b080..a42095e006952 100644
--- a/packages/task/package.json
+++ b/packages/task/package.json
@@ -9,7 +9,7 @@
     "@theia/terminal": "^0.3.15",
     "@theia/variable-resolver": "^0.3.15",
     "@theia/workspace": "^0.3.15",
-    "jsonc-parser": "^1.0.1"
+    "jsonc-parser": "^2.0.2"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/workspace/package.json b/packages/workspace/package.json
index 3e8091073a71a..19477251cd09e 100644
--- a/packages/workspace/package.json
+++ b/packages/workspace/package.json
@@ -7,19 +7,21 @@
     "@theia/filesystem": "^0.3.15",
     "@theia/variable-resolver": "^0.3.15",
     "@types/fs-extra": "^4.0.2",
-    "ajv": "^6.5.4",
+    "ajv": "^6.5.3",
     "fs-extra": "^4.0.2",
-    "jsonc-parser": "^1.0.1",
+    "jsonc-parser": "^2.0.2",
     "moment": "^2.21.0",
     "valid-filename": "^2.0.1"
   },
   "publishConfig": {
     "access": "public"
   },
-  "theiaExtensions": [{
-    "frontend": "lib/browser/workspace-frontend-module",
-    "backend": "lib/node/workspace-backend-module"
-  }],
+  "theiaExtensions": [
+    {
+      "frontend": "lib/browser/workspace-frontend-module",
+      "backend": "lib/node/workspace-backend-module"
+    }
+  ],
   "keywords": [
     "theia-extension"
   ],
diff --git a/scripts/check-hoisting b/scripts/check-hoisting
new file mode 100644
index 0000000000000..8ce8d35220426
--- /dev/null
+++ b/scripts/check-hoisting
@@ -0,0 +1,145 @@
+#!/usr/bin/env node
+/********************************************************************************
+ * Copyright (c) 2018 TypeFox and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the Eclipse
+ * Public License v. 2.0 are satisfied: GNU General Public License, version 2
+ * with the GNU Classpath Exception which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ ********************************************************************************/
+// @ts-check
+
+const fs = require('fs');
+const path = require('path');
+
+/**
+ * This scrip makes sure all the dependencies are hoisted into the root `node_modules` after running `yarn`.
+ *  - https://github.com/theia-ide/theia/pull/2994#issuecomment-425447650
+ *  - https://github.com/theia-ide/theia/pull/2994#issuecomment-425649817
+ *
+ * If you do not want to bail the execution, set the `THEIA_CHECK_HOISTING_NO_BAIL` environment variable to `true`. Use `cross-env`.
+ * ```json
+ *   ...
+ *   "scripts": {
+ *     ...,
+ *     "prepare:hoisting": "cross-env THEIA_CHECK_HOISTING_NO_BAIL=true node scripts/check-hoisting",
+ *     ...
+ *   }
+ *   ...
+ * ```
+ */
+
+(() => {
+
+    function collectIssues() {
+
+        console.log('🔍  Analyzing hoisted dependencies in the Theia extensions:');
+        const root = path.join(__dirname, '..');
+        const rootNodeModules = path.join(root, 'node_modules');
+        const packages = path.join(root, 'packages');
+
+        const issues = new Map();
+        for (const extension of fs.readdirSync(packages)) {
+            console.log(` - Checking @theia/${extension}...`);
+            const extensionPath = path.join(packages, extension);
+            const nodeModulesPath = path.join(extensionPath, 'node_modules');
+            if (fs.existsSync(nodeModulesPath)) {
+                for (const dependency of fs.readdirSync(nodeModulesPath).filter(name => name !== '.bin')) {
+                    const dependencyPath = path.join(nodeModulesPath, dependency);
+                    const version = versionOf(dependencyPath);
+                    let message = `Dependency '${dependency}' ${version ? `[${version}] ` : ''}was not hoisted to the root 'node_modules' folder.`;
+                    const existingDependency = path.join(rootNodeModules, dependency);
+                    if (fs.existsSync(existingDependency)) {
+                        const otherVersion = versionOf(existingDependency);
+                        if (otherVersion) {
+                            message += ` The same dependency already exists with version ${otherVersion} at '${existingDependency}'.`;
+                        }
+                    }
+                    error(issues, extension, message);
+                }
+            } else {
+                warn(issues, extension, "Does not have 'node_modules' folder.");
+            }
+        }
+        return issues;
+    }
+
+    function versionOf(npmPackagePath) {
+        const packageJsonPath = path.join(npmPackagePath, 'package.json');
+        if (fs.existsSync(packageJsonPath)) {
+            return require(packageJsonPath).version || '';
+        }
+        return '';
+    }
+
+    function warn(issues, extension, message) {
+        return log(issues, extension, message, 'warn');
+    }
+
+    function error(issues, extension, message) {
+        return log(issues, extension, message, 'error');
+    }
+
+    function log(issues, extension, message, type) {
+        const key = `@theia/${extension}`;
+        if (!issues.has(key)) {
+            issues.set(key, []);
+        }
+        const severity = toSeverity(type);
+        issues.get(key).push({ severity, message });
+        return issues;
+    }
+
+    function toSeverity(type) {
+        switch (type) {
+            case 'error': return 0;
+            case 'warn': return 1;
+            default: throw new Error(`Unexpected type: ${type}.`);
+        }
+    }
+
+    function toType(severity) {
+        switch (severity) {
+            case 0: return 'error';
+            case 1: return 'warning';
+            default: throw new Error(`Unexpected severity: ${severity}.`);
+        }
+    }
+
+    function assert(issues) {
+        console.log('📖  Summary:');
+        let code = 0;
+        if (issues && issues.length > 0) {
+            for (const extension of issues.keys()) {
+                const issuesPerExtension = issues.get(extension).sort((left, right) => left.severity - right.severity);
+                if (issuesPerExtension) {
+                    console.log(`The following dependency issues were detected in '${extension}':`);
+                    for (const { severity, message } of issuesPerExtension) {
+                        const type = toType(severity);
+                        console.log(` - ${type}: ${message}`);
+                        if (type === 'error') {
+                            code = 1;
+                        }
+                    }
+                }
+            }
+        } else {
+            console.log('🎉  No dependency issues were detected.');
+        }
+        if (code !== 0 && process.env.THEIA_CHECK_HOISTING_NO_BAIL === 'true') {
+            console.log("⚠️  'THEIA_CHECK_HOISTING_NO_BAIL' was 'true'. This is a kind reminder to fix the dependency issues.");
+            process.exit(0);
+        }
+        process.exit(code);
+    }
+
+    assert(collectIssues());
+
+})();
diff --git a/yarn.lock b/yarn.lock
index 75aa28cc3d483..0fd79e44c8248 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -438,151 +438,169 @@
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/@types/write-json-file/-/write-json-file-2.2.1.tgz#74155aaccbb0d532be21f9d66bebc4ea875a5a62"
 
-"@types/ws@^3.0.2":
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/@types/ws/-/ws-3.2.1.tgz#b0c1579e58e686f83ce0a97bb9463d29705827fb"
+"@types/ws@^5.1.2":
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/@types/ws/-/ws-5.1.2.tgz#f02d3b1cd46db7686734f3ce83bdf46c49decd64"
   dependencies:
+    "@types/events" "*"
     "@types/node" "*"
 
-"@types/yargs@^8.0.2":
-  version "8.0.3"
-  resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-8.0.3.tgz#6f0ad77792762fc69d209716dbab3201dcba56fb"
-
-"@webassemblyjs/ast@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.5.13.tgz#81155a570bd5803a30ec31436bc2c9c0ede38f25"
-  dependencies:
-    "@webassemblyjs/helper-module-context" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/wast-parser" "1.5.13"
-    debug "^3.1.0"
-    mamacro "^0.0.3"
-
-"@webassemblyjs/floating-point-hex-parser@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.5.13.tgz#29ce0baa97411f70e8cce68ce9c0f9d819a4e298"
-
-"@webassemblyjs/helper-api-error@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.5.13.tgz#e49b051d67ee19a56e29b9aa8bd949b5b4442a59"
-
-"@webassemblyjs/helper-buffer@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.5.13.tgz#873bb0a1b46449231137c1262ddfd05695195a1e"
-  dependencies:
-    debug "^3.1.0"
-
-"@webassemblyjs/helper-code-frame@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.5.13.tgz#1bd2181b6a0be14e004f0fe9f5a660d265362b58"
-  dependencies:
-    "@webassemblyjs/wast-printer" "1.5.13"
-
-"@webassemblyjs/helper-fsm@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.5.13.tgz#cdf3d9d33005d543a5c5e5adaabf679ffa8db924"
-
-"@webassemblyjs/helper-module-context@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.5.13.tgz#dc29ddfb51ed657655286f94a5d72d8a489147c5"
-  dependencies:
-    debug "^3.1.0"
-    mamacro "^0.0.3"
-
-"@webassemblyjs/helper-wasm-bytecode@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.5.13.tgz#03245817f0a762382e61733146f5773def15a747"
-
-"@webassemblyjs/helper-wasm-section@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.5.13.tgz#efc76f44a10d3073b584b43c38a179df173d5c7d"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-buffer" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/wasm-gen" "1.5.13"
-    debug "^3.1.0"
-
-"@webassemblyjs/ieee754@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.5.13.tgz#573e97c8c12e4eebb316ca5fde0203ddd90b0364"
-  dependencies:
-    ieee754 "^1.1.11"
-
-"@webassemblyjs/leb128@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.5.13.tgz#ab52ebab9cec283c1c1897ac1da833a04a3f4cee"
-  dependencies:
-    long "4.0.0"
-
-"@webassemblyjs/utf8@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.5.13.tgz#6b53d2cd861cf94fa99c1f12779dde692fbc2469"
-
-"@webassemblyjs/wasm-edit@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.5.13.tgz#c9cef5664c245cf11b3b3a73110c9155831724a8"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-buffer" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/helper-wasm-section" "1.5.13"
-    "@webassemblyjs/wasm-gen" "1.5.13"
-    "@webassemblyjs/wasm-opt" "1.5.13"
-    "@webassemblyjs/wasm-parser" "1.5.13"
-    "@webassemblyjs/wast-printer" "1.5.13"
-    debug "^3.1.0"
-
-"@webassemblyjs/wasm-gen@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.5.13.tgz#8e6ea113c4b432fa66540189e79b16d7a140700e"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/ieee754" "1.5.13"
-    "@webassemblyjs/leb128" "1.5.13"
-    "@webassemblyjs/utf8" "1.5.13"
-
-"@webassemblyjs/wasm-opt@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.5.13.tgz#147aad7717a7ee4211c36b21a5f4c30dddf33138"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-buffer" "1.5.13"
-    "@webassemblyjs/wasm-gen" "1.5.13"
-    "@webassemblyjs/wasm-parser" "1.5.13"
-    debug "^3.1.0"
+"@types/yargs@^11.1.0":
+  version "11.1.2"
+  resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-11.1.2.tgz#fd4b676846fe731a5de5c6d2e5ef6a377262fc30"
+
+"@webassemblyjs/ast@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.7.8.tgz#f31f480debeef957f01b623f27eabc695fa4fe8f"
+  integrity sha512-dOrtdtEyB8sInpl75yLPNksY4sRl0j/+t6aHyB/YA+ab9hV3Fo7FmG12FHzP+2MvWVAJtDb+6eXR5EZbZJ+uVg==
+  dependencies:
+    "@webassemblyjs/helper-module-context" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/wast-parser" "1.7.8"
+
+"@webassemblyjs/floating-point-hex-parser@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.7.8.tgz#1b3ed0e27e384032254e9322fc646dd3e70ef1b9"
+  integrity sha512-kn2zNKGsbql5i56VAgRYkpG+VazqHhQQZQycT2uXAazrAEDs23gy+Odkh5VblybjnwX2/BITkDtNmSO76hdIvQ==
+
+"@webassemblyjs/helper-api-error@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.7.8.tgz#a2b49c11f615e736f815ec927f035dcfa690d572"
+  integrity sha512-xUwxDXsd1dUKArJEP5wWM5zxgCSwZApSOJyP1XO7M8rNUChUDblcLQ4FpzTpWG2YeylMwMl1MlP5Ztryiz1x4g==
+
+"@webassemblyjs/helper-buffer@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.7.8.tgz#3fc66bfa09c1c60e824cf3d5887826fac062877d"
+  integrity sha512-WXiIMnuvuwlhWvVOm8xEXU9DnHaa3AgAU0ZPfvY8vO1cSsmYb2WbGbHnMLgs43vXnA7XAob9b56zuZaMkxpCBg==
+
+"@webassemblyjs/helper-code-frame@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.7.8.tgz#cc5a7e9522b70e7580df056dfd34020cf29645b0"
+  integrity sha512-TLQxyD9qGOIdX5LPQOPo0Ernd88U5rHkFb8WAjeMIeA0sPjCHeVPaGqUGGIXjUcblUkjuDAc07bruCcNHUrHDA==
+  dependencies:
+    "@webassemblyjs/wast-printer" "1.7.8"
+
+"@webassemblyjs/helper-fsm@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.7.8.tgz#fe4607430af466912797c21acafd3046080182ea"
+  integrity sha512-TjK0CnD8hAPkV5mbSp5aWl6SO1+H3WFcjWtixWoy8EMA99YnNzYhpc/WSYWhf7yrhpzkq5tZB0tvLK3Svr3IXA==
+
+"@webassemblyjs/helper-module-context@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.7.8.tgz#3c2e7ee93d14ff4768ba66fb1be42fdc9dc7160a"
+  integrity sha512-uCutAKR7Nm0VsFixcvnB4HhAyHouNbj0Dx1p7eRjFjXGGZ+N7ftTaG1ZbWCasAEbtwGj54LP8+lkBZdTCPmLGg==
+
+"@webassemblyjs/helper-wasm-bytecode@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.7.8.tgz#89bdb78cd6dd5209ae2ed2925de78d0f0e00b6f0"
+  integrity sha512-AdCCE3BMW6V34WYaKUmPgVHa88t2Z14P4/0LjLwuGkI0X6pf7nzp0CehzVVk51cKm2ymVXjl9dCG+gR1yhITIQ==
+
+"@webassemblyjs/helper-wasm-section@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.7.8.tgz#c68ef7d26a6fc12421b2e6e56f9bc810dfb33e87"
+  integrity sha512-BkBhYQuzyl4hgTGOKo87Vdw6f9nj8HhI7WYpI0MCC5qFa5ahrAPOGgyETVdnRbv+Rjukl9MxxfDmVcVC435lDg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-buffer" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/wasm-gen" "1.7.8"
+
+"@webassemblyjs/ieee754@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.7.8.tgz#1f37974b13cb486a9237e73ce04cac7a2f1265ed"
+  integrity sha512-tOarWChdG1a3y1yqCX0JMDKzrat5tQe4pV6K/TX19BcXsBLYxFQOL1DEDa5KG9syeyvCrvZ+i1+Mv1ExngvktQ==
+  dependencies:
+    "@xtuc/ieee754" "^1.2.0"
+
+"@webassemblyjs/leb128@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.7.8.tgz#1bee83426819192db2ea1a234b84c7ebc6d34c1f"
+  integrity sha512-GCYeGPgUFWJiZuP4NICbcyUQNxNLJIf476Ei+K+jVuuebtLpfvwkvYT6iTUE7oZYehhkor4Zz2g7SJ/iZaPudQ==
+  dependencies:
+    "@xtuc/long" "4.2.1"
+
+"@webassemblyjs/utf8@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.7.8.tgz#2b489d5cf43e0aebb93d8e2d792aff9879c61f05"
+  integrity sha512-9X+f0VV+xNXW2ujfIRSXBJENGE6Qh7bNVKqu3yDjTFB3ar3nsThsGBBKdTG58aXOm2iUH6v28VIf88ymPXODHA==
+
+"@webassemblyjs/wasm-edit@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.7.8.tgz#f8bdbe7088718eca27b1c349bb7c06b8a457950c"
+  integrity sha512-6D3Hm2gFixrfyx9XjSON4ml1FZTugqpkIz5Awvrou8fnpyprVzcm4X8pyGRtA2Piixjl3DqmX/HB1xdWyE097A==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-buffer" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/helper-wasm-section" "1.7.8"
+    "@webassemblyjs/wasm-gen" "1.7.8"
+    "@webassemblyjs/wasm-opt" "1.7.8"
+    "@webassemblyjs/wasm-parser" "1.7.8"
+    "@webassemblyjs/wast-printer" "1.7.8"
+
+"@webassemblyjs/wasm-gen@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.7.8.tgz#7e8abf1545eae74ac6781d545c034af3cfd0c7d5"
+  integrity sha512-a7O/wE6eBeVKKUYgpMK7NOHmMADD85rSXLe3CqrWRDwWff5y3cSVbzpN6Qv3z6C4hdkpq9qyij1Ga1kemOZGvQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/ieee754" "1.7.8"
+    "@webassemblyjs/leb128" "1.7.8"
+    "@webassemblyjs/utf8" "1.7.8"
+
+"@webassemblyjs/wasm-opt@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.7.8.tgz#7ada6e211914728fce02ff0ff9c344edc6d41f26"
+  integrity sha512-3lbQ0PT81NHCdi1sR/7+SNpZadM4qYcTSr62nFFAA7e5lFwJr14M1Gi+A/Y3PgcDWOHYjsaNGPpPU0H03N6Blg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-buffer" "1.7.8"
+    "@webassemblyjs/wasm-gen" "1.7.8"
+    "@webassemblyjs/wasm-parser" "1.7.8"
+
+"@webassemblyjs/wasm-parser@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.7.8.tgz#dac47c291fb6a3e63529aecd647592cd34afbf94"
+  integrity sha512-rZ/zlhp9DHR/05zh1MbAjT2t624sjrPP/OkJCjXqzm7ynH+nIdNcn9Ixc+qzPMFXhIrk0rBoQ3to6sEIvHh9jQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-api-error" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/ieee754" "1.7.8"
+    "@webassemblyjs/leb128" "1.7.8"
+    "@webassemblyjs/utf8" "1.7.8"
+
+"@webassemblyjs/wast-parser@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.7.8.tgz#f8aab9a450c048c1f9537695c89faeb92fabfba5"
+  integrity sha512-Q/zrvtUvzWuSiJMcSp90fi6gp2nraiHXjTV2VgAluVdVapM4gy1MQn7akja2p6eSBDQpKJPJ6P4TxRkghRS5dg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/floating-point-hex-parser" "1.7.8"
+    "@webassemblyjs/helper-api-error" "1.7.8"
+    "@webassemblyjs/helper-code-frame" "1.7.8"
+    "@webassemblyjs/helper-fsm" "1.7.8"
+    "@xtuc/long" "4.2.1"
+
+"@webassemblyjs/wast-printer@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.7.8.tgz#e7e965782c1912f6a965f14a53ff43d8ad0403a5"
+  integrity sha512-GllIthRtwTxRDAURRNXscu7Napzmdf1jt1gpiZiK/QN4fH0lSGs3OTmvdfsMNP7tqI4B3ZtfaaWRlNIQug6Xyg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/wast-parser" "1.7.8"
+    "@xtuc/long" "4.2.1"
+
+"@xtuc/ieee754@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@xtuc/ieee754/-/ieee754-1.2.0.tgz#eef014a3145ae477a1cbc00cd1e552336dceb790"
+  integrity sha512-DX8nKgqcGwsc0eJSqYt5lwP4DH5FlHnmuWWBRy7X0NcaGR0ZtuyeESgMwTYVEtxmsNGY+qit4QYT/MIYTOTPeA==
 
-"@webassemblyjs/wasm-parser@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.5.13.tgz#6f46516c5bb23904fbdf58009233c2dd8a54c72f"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-api-error" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/ieee754" "1.5.13"
-    "@webassemblyjs/leb128" "1.5.13"
-    "@webassemblyjs/utf8" "1.5.13"
-
-"@webassemblyjs/wast-parser@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.5.13.tgz#5727a705d397ae6a3ae99d7f5460acf2ec646eea"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/floating-point-hex-parser" "1.5.13"
-    "@webassemblyjs/helper-api-error" "1.5.13"
-    "@webassemblyjs/helper-code-frame" "1.5.13"
-    "@webassemblyjs/helper-fsm" "1.5.13"
-    long "^3.2.0"
-    mamacro "^0.0.3"
-
-"@webassemblyjs/wast-printer@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.5.13.tgz#bb34d528c14b4f579e7ec11e793ec50ad7cd7c95"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/wast-parser" "1.5.13"
-    long "^3.2.0"
+"@xtuc/long@4.2.1":
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.1.tgz#5c85d662f76fa1d34575766c5dcd6615abcd30d8"
+  integrity sha512-FZdkNBDqBRHKQ2MEbSC17xnPFOhZxeJ2YGSfr2BKf3sujG49Qe3bB+rGCwQfIaA7WHnGeGkSijX4FuBCdrzW/g==
 
 JSONStream@^1.0.4:
   version "1.3.4"
@@ -651,7 +669,7 @@ ajv@^4.9.1:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
 
-ajv@^5.0.0, ajv@^5.1.0, ajv@^5.2.2, ajv@^5.3.0:
+ajv@^5.0.0, ajv@^5.1.0, ajv@^5.3.0:
   version "5.5.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
   dependencies:
@@ -669,9 +687,10 @@ ajv@^6.1.0:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
-ajv@^6.5.4:
+ajv@^6.5.3:
   version "6.5.4"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.5.4.tgz#247d5274110db653706b550fcc2b797ca28cfc59"
+  integrity sha512-4Wyjt8+t6YszqaXnLDfMmG/8AlO5Zbcsy3ATHncCzjW/NoPzAId8AK6749Ybjmdt+kUY1gP60fCu46oDxPv/mg==
   dependencies:
     fast-deep-equal "^2.0.1"
     fast-json-stable-stringify "^2.0.0"
@@ -2723,6 +2742,14 @@ create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
+cross-env@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-5.2.0.tgz#6ecd4c015d5773e614039ee529076669b9d126f2"
+  integrity sha512-jtdNFfFW1hB7sMhr/H6rW1Z45LFqyI431m3qU6bFXcQ3Eh7LtBuG3h74o7ohHZ3crrRkkqHlo4jYHFPcjroANg==
+  dependencies:
+    cross-spawn "^6.0.5"
+    is-windows "^1.0.0"
+
 cross-spawn-async@^2.1.1:
   version "2.2.5"
   resolved "https://registry.yarnpkg.com/cross-spawn-async/-/cross-spawn-async-2.2.5.tgz#845ff0c0834a3ded9d160daca6d390906bb288cc"
@@ -4846,7 +4873,7 @@ icss-utils@^2.1.0:
   dependencies:
     postcss "^6.0.1"
 
-ieee754@^1.1.11, ieee754@^1.1.4:
+ieee754@^1.1.4:
   version "1.1.12"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.12.tgz#50bf24e5b9c8bb98af4964c941cdb0918da7b60b"
 
@@ -5232,9 +5259,10 @@ is-utf8@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
 
-is-windows@^1.0.1, is-windows@^1.0.2:
+is-windows@^1.0.0, is-windows@^1.0.1, is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
+  integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==
 
 isarray@0.0.1:
   version "0.0.1"
@@ -5275,9 +5303,10 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
-istanbul-instrumenter-loader@^3.0.0:
+istanbul-instrumenter-loader@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/istanbul-instrumenter-loader/-/istanbul-instrumenter-loader-3.0.1.tgz#9957bd59252b373fae5c52b7b5188e6fde2a0949"
+  integrity sha512-a5SPObZgS0jB/ixaKSMdn6n/gXSrK2S6q/UfRJBT3e6gQmVjwZROTODQsYW5ZNwOu78hG62Y3fWlebaVOL0C+w==
   dependencies:
     convert-source-map "^1.5.0"
     istanbul-lib-instrument "^1.7.3"
@@ -5520,10 +5549,6 @@ json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
 
-jsonc-parser@^1.0.1:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/jsonc-parser/-/jsonc-parser-1.0.3.tgz#1d53d7160e401a783dbceabaad82473f80e6ad7e"
-
 jsonc-parser@^2.0.0-next.1, jsonc-parser@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/jsonc-parser/-/jsonc-parser-2.0.1.tgz#9d23cd2709714fff508a1a6679d82135bee1ae60"
@@ -6036,14 +6061,6 @@ lolex@^2.1.2, lolex@^2.3.2:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/lolex/-/lolex-2.7.1.tgz#e40a8c4d1f14b536aa03e42a537c7adbaf0c20be"
 
-long@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/long/-/long-4.0.0.tgz#9a7b71cfb7d361a194ea555241c92f7468d5bf28"
-
-long@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/long/-/long-3.2.0.tgz#d821b7138ca1cb581c172990ef14db200b5c474b"
-
 longest@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
@@ -6092,10 +6109,6 @@ makeerror@1.0.x:
   dependencies:
     tmpl "1.0.x"
 
-mamacro@^0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/mamacro/-/mamacro-0.0.3.tgz#ad2c9576197c9f1abf308d0787865bd975a3f3e4"
-
 map-cache@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
@@ -8995,10 +9008,6 @@ strict-uri-encode@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
 
-string-argv@0.0.2:
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/string-argv/-/string-argv-0.0.2.tgz#dac30408690c21f3c3630a3ff3a05877bdcbd736"
-
 string-argv@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/string-argv/-/string-argv-0.1.1.tgz#66bd5ae3823708eaa1916fa5412703150d4ddfaf"
@@ -9173,6 +9182,11 @@ tapable@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.0.0.tgz#cbb639d9002eed9c6b5975eb20598d7936f1f9f2"
 
+tapable@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.0.tgz#0d076a172e3d9ba088fd2272b2668fb8d194b78c"
+  integrity sha512-IlqtmLVaZA2qab8epUXbVWRn3aB1imbDMJtjB3nu4X0NqPkcY/JH9ZtCBWKHWPxs8Svi9tyo8w2dBoi07qZbBA==
+
 tar-fs@^1.13.0, tar-fs@^1.16.2:
   version "1.16.3"
   resolved "https://registry.yarnpkg.com/tar-fs/-/tar-fs-1.16.3.tgz#966a628841da2c4010406a82167cbd5e0c72d509"
@@ -9628,10 +9642,6 @@ uglifyjs-webpack-plugin@^1.2.4:
     webpack-sources "^1.1.0"
     worker-farm "^1.5.2"
 
-ultron@~1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
-
 umd-compat-loader@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/umd-compat-loader/-/umd-compat-loader-2.1.1.tgz#1a44674f57deeb429f4d1533668453a3cf322422"
@@ -9734,9 +9744,10 @@ urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
 
-url-loader@^1.0.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/url-loader/-/url-loader-1.1.1.tgz#4d1f3b4f90dde89f02c008e662d604d7511167c1"
+url-loader@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/url-loader/-/url-loader-1.1.2.tgz#b971d191b83af693c5e3fea4064be9e1f2d7f8d8"
+  integrity sha512-dXHkKmw8FhPqu8asTc1puBfe3TehOCo2+RmOOev5suNCIYBcT626kxiWg1NBVkwc4rO8BGa7gP70W7VXuqHrjg==
   dependencies:
     loader-utils "^1.1.0"
     mime "^2.0.3"
@@ -10097,22 +10108,30 @@ webpack-cli@2.0.12:
     yeoman-environment "^2.0.0"
     yeoman-generator "^2.0.3"
 
-webpack-sources@^1.0.1, webpack-sources@^1.1.0:
+webpack-sources@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"
   dependencies:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
+webpack-sources@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.3.0.tgz#2a28dcb9f1f45fe960d8f1493252b5ee6530fa85"
+  integrity sha512-OiVgSrbGu7NEnEvQJJgdSFPl2qWKkWq5lHMhgiToIiN9w34EBnjYzSYs+VbL5KoYiLNtFFa7BZIKxRED3I32pA==
+  dependencies:
+    source-list-map "^2.0.0"
+    source-map "~0.6.1"
+
 webpack@^4.0.0:
-  version "4.16.5"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.16.5.tgz#29fb39462823d7eb8aefcab8b45f7f241db0d092"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-module-context" "1.5.13"
-    "@webassemblyjs/wasm-edit" "1.5.13"
-    "@webassemblyjs/wasm-opt" "1.5.13"
-    "@webassemblyjs/wasm-parser" "1.5.13"
+  version "4.21.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.21.0.tgz#bd03605c0f48c0d4aaaef78ead2769485e5afd92"
+  integrity sha512-CGBeop4AYR0dcmk9Afl33qQULwTHQCXQPAIBTHMJoy9DpY8FPUDna/NUlAGTr5o5y9QC901Ww3wCY4wNo1X9Lw==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-module-context" "1.7.8"
+    "@webassemblyjs/wasm-edit" "1.7.8"
+    "@webassemblyjs/wasm-parser" "1.7.8"
     acorn "^5.6.2"
     acorn-dynamic-import "^3.0.0"
     ajv "^6.1.0"
@@ -10129,10 +10148,10 @@ webpack@^4.0.0:
     neo-async "^2.5.0"
     node-libs-browser "^2.0.0"
     schema-utils "^0.4.4"
-    tapable "^1.0.0"
+    tapable "^1.1.0"
     uglifyjs-webpack-plugin "^1.2.4"
     watchpack "^1.5.0"
-    webpack-sources "^1.0.1"
+    webpack-sources "^1.3.0"
 
 wgxpath@~1.0.0:
   version "1.0.0"
@@ -10295,15 +10314,7 @@ write-pkg@^3.1.0:
     sort-keys "^2.0.0"
     write-json-file "^2.2.0"
 
-ws@^3.0.0:
-  version "3.3.3"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"
-  dependencies:
-    async-limiter "~1.0.0"
-    safe-buffer "~5.1.0"
-    ultron "~1.1.0"
-
-ws@^5.2.0:
+ws@^5.2.0, ws@^5.2.2:
   version "5.2.2"
   resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.2.tgz#dffef14866b8e8dc9133582514d1befaf96e980f"
   dependencies:
@@ -10383,7 +10394,7 @@ yargs-parser@^9.0.2:
   dependencies:
     camelcase "^4.1.0"
 
-yargs@11.1.0, yargs@^11.0.0:
+yargs@11.1.0, yargs@^11.0.0, yargs@^11.1.0:
   version "11.1.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
   dependencies:
@@ -10453,24 +10464,6 @@ yargs@^8.0.2:
     y18n "^3.2.1"
     yargs-parser "^7.0.0"
 
-yargs@^9.0.1:
-  version "9.0.1"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-9.0.1.tgz#52acc23feecac34042078ee78c0c007f5085db4c"
-  dependencies:
-    camelcase "^4.1.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^2.0.0"
-    read-pkg-up "^2.0.0"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^7.0.0"
-
 yargs@~1.2.6:
   version "1.2.6"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-1.2.6.tgz#9c7b4a82fd5d595b2bf17ab6dcc43135432fe34b"