diff --git a/services/data-manager/Dockerfile b/services/data-manager/Dockerfile
index 57a19115..080a4391 100644
--- a/services/data-manager/Dockerfile
+++ b/services/data-manager/Dockerfile
@@ -14,7 +14,7 @@
 # The GitHub Actions workflow at .github/workflows/docker.yml builds this
 # image with `context: .` for the same reason.
 
-FROM docker.io/golang:1.26@sha256:32c0e6e5c4f6707717051091b4d0b077464a679eaab563e11474efc5328e2aa5 AS build-gtfsclean
+FROM docker.io/golang:1.26@sha256:f96cc555eb8db430159a3aa6797cd5bae561945b7b0fe7d0e284c63a3b291609 AS build-gtfsclean
 # Pin gtfsclean to a commit (the project only publishes rolling snapshot-N tags)
 # instead of @latest so the build is reproducible and can't silently pull new code.
 RUN GOPROXY=direct GOBIN=/usr/local/bin/ go install github.com/public-transport/gtfsclean@bb3ea74f66ef9bc07dc1bd038c3f653e10f0ade0 # snapshot-5