diff --git a/demo/package-lock.json b/demo/package-lock.json
index 78758e8..362051e 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -10,11 +10,6 @@
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+      "resolved": "https://registry.npmjs.org/create-react-class/-/create-react-class-15.7.0.tgz",
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@@ -367,20 +348,6 @@
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-      "integrity": "sha1-xNWY6taUkRJlPWWIsBpc3Nn5D90=",
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-        "isomorphic-fetch": "^2.1.1",
-        "loose-envify": "^1.0.0",
-        "object-assign": "^4.1.0",
-        "promise": "^7.1.1",
-        "setimmediate": "^1.0.5",
-        "ua-parser-js": "^0.7.18"
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@@ -436,14 +403,6 @@
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-      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
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-      "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ="
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@@ -473,15 +427,6 @@
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-      "resolved": "https://registry.npmjs.org/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz",
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@@ -568,15 +513,6 @@
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@@ -670,14 +606,6 @@
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       "dev": true
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-    "promise": {
-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/promise/-/promise-7.3.1.tgz",
-      "integrity": "sha512-nolQXZ/4L+bP/UGlkfaIujX9BKxGwmQ9OT4mOt5yvy8iK1h3wqTEJCijzGANTCCl9nWjY41juyAn2K3Q1hLLTg==",
-      "requires": {
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@@ -927,11 +855,6 @@
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       "dev": true
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-    "safer-buffer": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
-      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
-    },
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       "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.13.6.tgz",
@@ -944,7 +867,8 @@
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       "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
-      "integrity": "sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU="
+      "integrity": "sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=",
+      "dev": true
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     "sha.js": {
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@@ -1050,11 +974,6 @@
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-      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.20.tgz",
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@@ -1133,11 +1052,6 @@
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diff --git a/demo/package.json b/demo/package.json
index 03b7058..0e49ac2 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -4,7 +4,7 @@
   },
   "dependencies": {
     "brace": "0.11.1",
-    "create-react-class": "^15.6.3",
+    "create-react-class": "^15.7.0",
     "highlight.js": "^9.15.8",
     "prop-types": "^15.6.2",
     "react": "^16.6.3",