diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index 825f642..aeafd35 100644
--- a/k8s/infra/postgres.yaml
+++ b/k8s/infra/postgres.yaml
@@ -53,7 +53,7 @@ spec:
     spec:
       containers:
       - name: postgres
-        image: postgres:18.3-alpine@sha256:d164db0c6b4fc00e438f160b4480f207f3f837cf60f781c61670af4ef71a8062
+        image: postgres:18.3-alpine@sha256:54451ecb8ab38c24c3ec123f2fd501303a3a1856a5c66e98cecf2460d5e1e9d7
         args:
         - -c
         - shared_buffers=384MB