diff --git a/packages/debugger/package.json b/packages/debugger/package.json
index 4c85433f5253..c4be4b3d38fa 100644
--- a/packages/debugger/package.json
+++ b/packages/debugger/package.json
@@ -73,7 +73,7 @@
     "@lumino/signaling": "^1.10.1",
     "@lumino/widgets": "^1.31.1",
     "@vscode/debugprotocol": "^1.51.0",
-    "codemirror": "~5.61.0",
+    "codemirror": "~6.0.0",
     "react": "^17.0.1"
   },
   "devDependencies": {