diff --git a/functions/v2/datastore/hello-datastore/requirements.txt b/functions/v2/datastore/hello-datastore/requirements.txt
index 7ec9ecc3843d..245e7ea625f3 100644
--- a/functions/v2/datastore/hello-datastore/requirements.txt
+++ b/functions/v2/datastore/hello-datastore/requirements.txt
@@ -2,5 +2,5 @@ functions-framework==3.5.0
 google-events==0.11.0
 google-cloud-datastore==2.19.0
 google-api-core==2.17.1
-protobuf==4.25.2
+protobuf==4.25.3
 cloudevents==1.10.1
diff --git a/functions/v2/firebase/hello-firestore/requirements.txt b/functions/v2/firebase/hello-firestore/requirements.txt
index 9cb64fb32e21..23b3c513b431 100644
--- a/functions/v2/firebase/hello-firestore/requirements.txt
+++ b/functions/v2/firebase/hello-firestore/requirements.txt
@@ -1,5 +1,5 @@
 functions-framework==3.3.0
 google-events==0.11.0
 google-api-core==2.17.1
-protobuf==4.23.3
+protobuf==4.25.3
 cloudevents==1.10.1
\ No newline at end of file
diff --git a/functions/v2/firebase/upper-firestore/requirements.txt b/functions/v2/firebase/upper-firestore/requirements.txt
index e737ce11223a..47774d29a55f 100644
--- a/functions/v2/firebase/upper-firestore/requirements.txt
+++ b/functions/v2/firebase/upper-firestore/requirements.txt
@@ -1,6 +1,6 @@
 functions-framework==3.3.0
 google-events==0.11.0
 google-api-core==2.17.1
-protobuf==4.23.3
+protobuf==4.25.3
 google-cloud-firestore==2.11.1
 cloudevents==1.10.1
\ No newline at end of file