diff --git a/package-lock.json b/package-lock.json
index f3e4c00d6..f32e60876 100644
--- a/package-lock.json
+++ b/package-lock.json
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       "dev": true
     },
+    "unc-path-regex": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/unc-path-regex/-/unc-path-regex-0.1.2.tgz",
+      "integrity": "sha512-eXL4nmJT7oCpkZsHZUOJo8hcX3GbsiDOa0Qu9F646fi8dT3XuSVopVqAcEiVzSKKH7UoDti23wNX3qGFxcW5Qg==",
+      "dev": true
+    },
     "undeclared-identifiers": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/undeclared-identifiers/-/undeclared-identifiers-1.1.2.tgz",
@@ -20465,13 +20857,21 @@
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     },
     "underscore.string": {
-      "version": "3.3.4",
-      "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.4.tgz",
-      "integrity": "sha1-LCo/n4PmR2L9xF5s6sZRQoZCE9s=",
+      "version": "3.3.6",
+      "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.6.tgz",
+      "integrity": "sha512-VoC83HWXmCrF6rgkyxS9GHv8W9Q5nhMKho+OadDJGzL2oDYbYEppBaCMH6pFlwLeqj2QS+hhkw2kpXkSdD1JxQ==",
       "dev": true,
       "requires": {
-        "sprintf-js": "^1.0.3",
+        "sprintf-js": "^1.1.1",
         "util-deprecate": "^1.0.2"
+      },
+      "dependencies": {
+        "sprintf-js": {
+          "version": "1.1.2",
+          "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.1.2.tgz",
+          "integrity": "sha512-VE0SOVEHCk7Qc8ulkWw3ntAzXuqf7S2lvwQaDLRnUeIEaKNQJzV6BwmLKhOqT61aGhfUMrXeaBk+oDGCzvhcug==",
+          "dev": true
+        }
       }
     },
     "unicode-canonical-property-names-ecmascript": {
diff --git a/package.json b/package.json
index 7b3d7a6e0..259dd70ff 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "eslint-loader": "^1.9.0",
     "extract-text-webpack-plugin": "^3.0.2",
     "file-loader": "^0.11.2",
-    "grunt": "^1.0.3",
+    "grunt": "^1.5.3",
     "grunt-browserify": "^5.3.0",
     "grunt-contrib-clean": "^1.0.0",
     "grunt-contrib-compress": "^1.4.1",