diff --git a/integration/cloudbuild/testbase/Dockerfile b/integration/cloudbuild/testbase/Dockerfile
index ed5bdcd2f5..0e6a9b9e6a 100644
--- a/integration/cloudbuild/testbase/Dockerfile
+++ b/integration/cloudbuild/testbase/Dockerfile
@@ -1,5 +1,5 @@
 # This Dockerfile builds a base image for Trillan integration tests.
-FROM golang:1.22.4-bookworm@sha256:aec47843e52fee4436bdd3ce931417fa980e9055658b5142140925eea3044bea
+FROM golang:1.22.4-bookworm@sha256:96788441ff71144c93fc67577f2ea99fd4474f8e45c084e9445fe3454387de5b
 
 WORKDIR /testbase