diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index db7d554..b72a6ec 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:b73cfacf3ab6dd856b34313193598dc9ff12e835715675bcdcfd3ac8732f5842
+        image: postgres:18.3-alpine@sha256:c48f944df2efbcece2dc4ea6725554f97d430fc0a4fbcfbeb31803b22dc33331
         args:
         - -c
         - shared_buffers=384MB