diff --git a/functions/v2/firebase/hello-firestore/requirements.txt b/functions/v2/firebase/hello-firestore/requirements.txt
index b2d03f648de..200ce86a155 100644
--- a/functions/v2/firebase/hello-firestore/requirements.txt
+++ b/functions/v2/firebase/hello-firestore/requirements.txt
@@ -1,5 +1,5 @@
 functions-framework==3.9.2
 google-events==0.14.0
 google-api-core==2.17.1
-protobuf==4.25.6
+protobuf==5.29.6
 cloudevents==1.11.0
\ No newline at end of file