diff --git a/cloud-tasks/function/package.json b/cloud-tasks/function/package.json
index 29ad7e6048..1f01c2950e 100644
--- a/cloud-tasks/function/package.json
+++ b/cloud-tasks/function/package.json
@@ -15,6 +15,6 @@
   "devDependencies": {
     "mocha": "^10.1.0",
     "proxyquire": "^2.1.0",
-    "sinon": "^9.0.0"
+    "sinon": "^19.0.0"
   }
 }