diff --git a/package-lock.json b/package-lock.json
index 3c9e124828..5909cb65f7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -592,9 +592,9 @@
       }
     },
     "@types/mocha": {
-      "version": "8.2.3",
-      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-8.2.3.tgz",
-      "integrity": "sha512-ekGvFhFgrc2zYQoX4JeZPmVzZxw6Dtllga7iGHzfbYIYkAMUx/sAFP2GdFpLff+vdHXu5fl7WX9AT+TtqYcsyw==",
+      "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 ddac428239..e38e903856 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
   "homepage": "https://github.com/dolanmiu/docx#readme",
   "devDependencies": {
     "@types/chai": "^4.2.15",
-    "@types/mocha": "^8.0.0",
+    "@types/mocha": "^9.0.0",
     "@types/request-promise": "^4.1.42",
     "@types/sinon": "^10.0.0",
     "@types/webpack": "^5.0.0",