diff --git a/integration/cloudbuild/testbase/Dockerfile b/integration/cloudbuild/testbase/Dockerfile
index 7f6ea454ff..7d413befde 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:1.22.3-bookworm@sha256:6d71b7c3f884e7b9552bffa852d938315ecca843dcc75a86ee7000567da0923d
+FROM golang:1.22.3-bookworm@sha256:c2bc4ef4064059a5dbd083e573dbd5d074858130fa3f1ed14807903b71ed99f1
 
 WORKDIR /testbase