diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index e7d4233..4e7dcee 100644
--- a/k8s/infra/postgres.yaml
+++ b/k8s/infra/postgres.yaml
@@ -52,7 +52,7 @@ spec:
     spec:
       containers:
       - name: postgres
-        image: postgres:18.3-alpine@sha256:97e0c20847f5fe90be7e002ce2619be71f037e898f6c7364ad59e3826d60fee5
+        image: postgres:18.3-alpine@sha256:4da1a4828be12604092fa55311276f08f9224a74a62dcb4708bd7439e2a03911
         args:
         - -c
         - shared_buffers=384MB