diff --git a/tools/package-lock.json b/tools/package-lock.json
index 3c854661a7..3e5d52664b 100644
--- a/tools/package-lock.json
+++ b/tools/package-lock.json
@@ -187,9 +187,9 @@
       "dev": true
     },
     "@types/mocha": {
-      "version": "8.0.4",
-      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-8.0.4.tgz",
-      "integrity": "sha512-M4BwiTJjHmLq6kjON7ZoI2JMlBvpY3BYSdiP6s/qCT3jb1s9/DeJF0JELpAxiVSIxXDzfNKe+r7yedMIoLbknQ==",
+      "version": "9.1.1",
+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-9.1.1.tgz",
+      "integrity": "sha512-Z61JK7DKDtdKTWwLeElSEBcWGRLY8g95ic5FoQqI9CMx0ns/Ghep3B4DfcEimiKMvtamNVULVNKEsiwV3aQmXw==",
       "dev": true
     },
     "@types/node": {
diff --git a/tools/package.json b/tools/package.json
index eb4dfc9067..d8799ac2b9 100644
--- a/tools/package.json
+++ b/tools/package.json
@@ -17,7 +17,7 @@
   "devDependencies": {
     "@types/chai": "^4.2.22",
     "@types/express": "^4.17.13",
-    "@types/mocha": "^8.0.4",
+    "@types/mocha": "^9.1.1",
     "@types/node": "^16.11.6",
     "@types/tv4": "^1.2.31",
     "@typescript-eslint/eslint-plugin": "^5.2.0",