diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index 4e7dcee..db7d554 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@sha256:4da1a4828be12604092fa55311276f08f9224a74a62dcb4708bd7439e2a03911
+        image: postgres:18.3-alpine@sha256:b73cfacf3ab6dd856b34313193598dc9ff12e835715675bcdcfd3ac8732f5842
         args:
         - -c
         - shared_buffers=384MB