diff --git a/.librarian/state.yaml b/.librarian/state.yaml
index addf1c7a7908..a65a9e361de6 100644
--- a/.librarian/state.yaml
+++ b/.librarian/state.yaml
@@ -1,4 +1,4 @@
-image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator:latest
+image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:27eae7edfe88876a47cbdb89ec6491192706e94ce46ac0e3ff4d202ef3220fed
 libraries:
   - id: google-ads-admanager
     version: 0.6.0