diff --git a/pkgs/misc/vscode-extensions/rust-analyzer/build-deps/package.json b/pkgs/misc/vscode-extensions/rust-analyzer/build-deps/package.json
index 4af15f4619eaa..70ecf9e3eb306 100644
--- a/pkgs/misc/vscode-extensions/rust-analyzer/build-deps/package.json
+++ b/pkgs/misc/vscode-extensions/rust-analyzer/build-deps/package.json
@@ -15,7 +15,7 @@
     "@typescript-eslint/parser": "^3.10.1",
     "eslint": "^7.8.0",
     "glob": "^7.1.6",
-    "mocha": "^8.1.3",
+    "mocha": "^9.1.2",
     "rollup": "^2.26.9",
     "tslib": "^2.0.1",
     "typescript": "^3.9.7",