diff --git a/functions/firebase/package.json b/functions/firebase/package.json
index 9a1c8fe07d..8a7689f9b6 100644
--- a/functions/firebase/package.json
+++ b/functions/firebase/package.json
@@ -17,7 +17,7 @@
   "devDependencies": {
     "mocha": "^10.1.0",
     "proxyquire": "^2.1.0",
-    "sinon": "^9.0.0",
+    "sinon": "^19.0.0",
     "supertest": "^6.0.0",
     "uuid": "^8.0.0"
   },