diff --git a/package-lock.json b/package-lock.json
index 9334e4e..bd8f299 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -131,9 +131,9 @@
       }
     },
     "@types/mocha": {
-      "version": "8.2.2",
-      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-8.2.2.tgz",
-      "integrity": "sha512-Lwh0lzzqT5Pqh6z61P3c3P5nm6fzQK/MMHl9UKeneAeInVflBSz1O2EkX6gM6xfJd7FBXBY5purtLx7fUiZ7Hw==",
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-9.0.0.tgz",
+      "integrity": "sha512-scN0hAWyLVAvLR9AyW7HoFF5sJZglyBsbPuHO4fv7JRvfmPBMfp1ozWqOf/e4wwPNxezBZXRfWzMb6iFLgEVRA==",
       "dev": true
     },
     "@types/node": {
diff --git a/package.json b/package.json
index 74f9e98..fe31822 100644
--- a/package.json
+++ b/package.json
@@ -221,7 +221,7 @@
     "test": "npm run compile && node ./node_modules/vscode/bin/test"
   },
   "devDependencies": {
-    "@types/mocha": "^8.2.2",
+    "@types/mocha": "^9.0.0",
     "@types/node": "^14.17.4",
     "tslint": "^6.1.3",
     "typescript": "^4.3.5",