diff --git a/package-lock.json b/package-lock.json
index f03dd5b..621bce2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
         "@graphprotocol/graph-ts": "^0.20.1",
         "@types/chai": "^4.2.21",
         "@types/chai-spies": "^1.0.3",
-        "@types/mocha": "^8.2.3",
+        "@types/mocha": "^9.0.0",
         "@typescript-eslint/eslint-plugin": "^4.28.4",
         "@typescript-eslint/parser": "^4.28.4",
         "auto-changelog": "^2.3.0",
@@ -999,9 +999,9 @@
       "dev": true
     },
     "node_modules/@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
     },
     "node_modules/@types/node": {
@@ -14048,9 +14048,9 @@
       "dev": true
     },
     "@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 241e03f..cb46070 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "@graphprotocol/graph-ts": "^0.20.1",
     "@types/chai": "^4.2.21",
     "@types/chai-spies": "^1.0.3",
-    "@types/mocha": "^8.2.3",
+    "@types/mocha": "^9.0.0",
     "@typescript-eslint/eslint-plugin": "^4.28.4",
     "@typescript-eslint/parser": "^4.28.4",
     "auto-changelog": "^2.3.0",