diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index b72a6ec..3004f75 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:c48f944df2efbcece2dc4ea6725554f97d430fc0a4fbcfbeb31803b22dc33331
+        image: postgres:18.3-alpine@sha256:52098013b4b64a746626437d38afc03cabff6cdeb4d3d92e2342aa95f0ce56ea
         args:
         - -c
         - shared_buffers=384MB