diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index 8ca5dec..88072f7 100644
--- a/k8s/infra/postgres.yaml
+++ b/k8s/infra/postgres.yaml
@@ -52,7 +52,7 @@ spec:
     spec:
       containers:
       - name: postgres
-        image: postgres:18.1-alpine@sha256:b5f0dfb46e028c156ff4e3dd2908fdf3474e6bd7837902d0e0151e4e30ad711f
+        image: postgres:18.1-alpine@sha256:b40d931bd0e7ce6eecc59a5a6ac3b3c04a01e559750e73e7086b6dbd7f8bf545
         args:
         - -c
         - shared_buffers=384MB