diff --git a/eventing/samples/gcp-pubsub-source/subscriber.yaml b/eventing/samples/gcp-pubsub-source/subscriber.yaml
index e0d754f02..4bd828f82 100644
--- a/eventing/samples/gcp-pubsub-source/subscriber.yaml
+++ b/eventing/samples/gcp-pubsub-source/subscriber.yaml
@@ -11,8 +11,8 @@ spec:
         spec:
           container:
             # This corresponds to
-            # https://github.com/knative/eventing-sources/blob/v0.2.1/cmd/message_dumper/dumper.go.
-            image: gcr.io/knative-releases/github.com/knative/eventing-sources/cmd/message_dumper@sha256:ab5391755f11a5821e7263686564b3c3cd5348522f5b31509963afb269ddcd63
+            # https://github.com/knative/eventing-sources/blob/release-0.3/cmd/message_dumper/dumper.go
+            gcr.io/knative-releases/github.com/knative/eventing-sources/cmd/message_dumper@sha256:8423232db7a7b4010c0cfbfaef95745efe962631af9b7456903825801a7893f7
 
 ---