diff --git a/demo/package.json b/demo/package.json
index c71f2e96..c4f61c88 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -8,7 +8,7 @@
     "@material-ui/lab": "^4.0.0-alpha.28",
     "@material-ui/styles": "^4.5.0",
     "@monaco-editor/react": "^4.1.3",
-    "classnames": "^2.2.6",
+    "classnames": "^2.5.1",
     "mobile-detect": "^1.4.4",
     "monaco-themes": "^0.3.3",
     "overmind": "^22.0.5",