Pin version

Author: huv1k

packages/graphql-playground-electron/package.json

@@ -95,7 +95,7 @@
     "graphcool-ui": "^0.0.13",
     "graphql-config": "^1.1.2",
     "graphql-config-extension-graphcool": "1.0.0",
-    "graphql-playground-react": "^1.3.20",
+    "graphql-playground-react": "1.3.20",
     "js-yaml": "^3.10.0",
     "lodash.merge": "^4.6.0",
     "minimist": "^1.2.0",