diff --git a/integration/cloudbuild/testbase/Dockerfile b/integration/cloudbuild/testbase/Dockerfile
index 7d413befde..3e2d0f23af 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:c2bc4ef4064059a5dbd083e573dbd5d074858130fa3f1ed14807903b71ed99f1
+FROM golang:1.22.3-bookworm@sha256:ef27a3c07e6727d445fc70cd861f8f29f9152e51473ee3a952ea6bddd24ebf90
 
 WORKDIR /testbase