diff --git a/website/pages/playground/index.html b/website/pages/playground/index.html
index de384c924..09da42cae 100644
--- a/website/pages/playground/index.html
+++ b/website/pages/playground/index.html
@@ -20,26 +20,26 @@
   <link rel="icon" href="/icon.png">
   <link rel="apple-touch-icon" href="/icon.png">
 
-  <link rel="stylesheet" crossorigin  href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/codemirror.css">
+  <link rel="stylesheet" crossorigin  href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/codemirror.min.css">
 
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/codemirror.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/mode/javascript/javascript.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/mode/xml/xml.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/mode/jsx/jsx.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/mode/css/css.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/mode/markdown/markdown.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/addon/display/placeholder.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/addon/display/rulers.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/addon/search/searchcursor.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/addon/edit/matchbrackets.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/addon/edit/closebrackets.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/addon/comment/comment.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/addon/wrap/hardwrap.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.36.0/keymap/sublime.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/codemirror.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/mode/javascript/javascript.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/mode/xml/xml.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/mode/jsx/jsx.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/mode/css/css.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/mode/markdown/markdown.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/addon/display/placeholder.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/addon/display/rulers.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/addon/search/searchcursor.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/addon/edit/matchbrackets.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/addon/edit/closebrackets.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/addon/comment/comment.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/addon/wrap/hardwrap.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.48.4/keymap/sublime.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.4/clipboard.min.js"></script>
   <script src="https://cdnjs.cloudflare.com/ajax/libs/lz-string/1.4.4/lz-string.min.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.3.1/umd/react.production.min.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.3.1/umd/react-dom.production.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.12.0/umd/react.production.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.11.0/umd/react-dom.production.min.js"></script>
 
   <link rel="stylesheet" href="/separate-css/playground.css">