diff --git a/integration/Dockerfile b/integration/Dockerfile
index c39bec95bc..8509fe1074 100644
--- a/integration/Dockerfile
+++ b/integration/Dockerfile
@@ -1,6 +1,6 @@
 # This Dockerfile builds a base image for the certificate-transparency-go CloudBuild integration testing.
 # See https://hub.docker.com/_/golang for the set of golang base images.
-FROM golang:1.22.3-bookworm@sha256:ef27a3c07e6727d445fc70cd861f8f29f9152e51473ee3a952ea6bddd24ebf90 as ct_testbase
+FROM golang:1.22.3-bookworm@sha256:5c56bd47228dd572d8a82971cf1f946cd8bb1862a8ec6dc9f3d387cc94136976 as ct_testbase
 
 WORKDIR /testbase