diff --git a/server/src/main/resources/graphql-playground.html b/server/src/main/resources/graphql-playground.html
index bdc7cfc5..96fc4695 100644
--- a/server/src/main/resources/graphql-playground.html
+++ b/server/src/main/resources/graphql-playground.html
@@ -25,12 +25,12 @@
     <script
             crossorigin="anonymous"
             integrity="sha512-Vf2xGDzpqUOEIKO+X2rgTLWPY+65++WPwCHkX2nFMu9IcstumPsf/uKKRd5prX3wOu8Q0GBylRpsDB26R6ExOg=="
-            src="https://unpkg.com/react@17/umd/react.development.js"
+            src="https://unpkg.com/react@17.0.2/umd/react.development.js"
     ></script>
     <script
             crossorigin="anonymous"
             integrity="sha512-Wr9OKCTtq1anK0hq5bY3X/AvDI5EflDSAh0mE9gma+4hl+kXdTJPKZ3TwLMBcrgUeoY0s3dq9JjhCQc7vddtFg=="
-            src="https://unpkg.com/react-dom@17/umd/react-dom.development.js"
+            src="https://unpkg.com/react-dom@17.0.2/umd/react-dom.development.js"
     ></script>
 
     <!--
@@ -38,8 +38,8 @@
       copy them directly into your environment, or perhaps include them in your
       favored resource bundler.
      -->
-    <link href="https://unpkg.com/graphiql/graphiql.min.css" rel="stylesheet"/>
-    <link href="https://unpkg.com/@graphiql/plugin-explorer/dist/style.css" rel="stylesheet"/>
+    <link href="https://unpkg.com/graphiql@3.0.0/graphiql.min.css" rel="stylesheet"/>
+    <link href="https://unpkg.com/@graphiql/plugin-explorer@0.1.22/dist/style.css" rel="stylesheet"/>
     <style>
         .docExplorerWrap {
             width: 100% !important;
@@ -70,11 +70,11 @@
 <body>
     <div id="graphiql">Loading...</div>
     <script
-            src="https://unpkg.com/graphiql/graphiql.min.js"
+            src="https://unpkg.com/graphiql@3.0.0/graphiql.min.js"
             type="application/javascript"
     ></script>
     <script
-            src="https://unpkg.com/@graphiql/plugin-explorer/dist/index.umd.js"
+            src="https://unpkg.com/@graphiql/plugin-explorer@0.1.22/dist/graphiql-plugin-explorer.umd.js"
             type="application/javascript"
     ></script>
 
