diff --git a/packages/grafeas/package.json b/packages/grafeas/package.json
index 7b92ede8557..24d75b16d4f 100644
--- a/packages/grafeas/package.json
+++ b/packages/grafeas/package.json
@@ -38,7 +38,7 @@
     "mocha": "^8.0.0",
     "null-loader": "^4.0.0",
     "pack-n-play": "^1.0.0-2",
-    "sinon": "^9.0.1",
+    "sinon": "^10.0.0",
     "ts-loader": "^8.0.0",
     "typescript": "^3.8.3",
     "webpack": "^5.0.0",