diff --git a/Dockerfile.pubsub-emulator b/Dockerfile.pubsub-emulator
index 99ad1442c..4023bfc7f 100644
--- a/Dockerfile.pubsub-emulator
+++ b/Dockerfile.pubsub-emulator
@@ -1,3 +1,3 @@
 # gcloud sdk for pubsub emulator with netcat added for the startup health check
-FROM google/cloud-sdk:488.0.0@sha256:6062aa734ab20faa58adee33c216fc473ce38ccd4dbeaadf7997dfa9b5bfcabe
+FROM google/cloud-sdk:503.0.0@sha256:3de00d1ff412222f53cf71e7e20c99c13ec3e8e21dc3056e2d6cedc9408afaee
 RUN apt-get install -y netcat