diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index bb7d7b1..af1d012 100644
--- a/k8s/infra/postgres.yaml
+++ b/k8s/infra/postgres.yaml
@@ -53,7 +53,7 @@ spec:
     spec:
       containers:
       - name: postgres
-        image: postgres:18.4-alpine@sha256:ecafd34249b5c248f3cb6ebe339584ee6448b36fad3f0a827ae5e8efbae6afda
+        image: postgres:18.4-alpine@sha256:9a8afca54e7861fd90fab5fdf4c42477a6b1cb7d293595148e674e0a3181de15
         args:
         - -c
         - shared_buffers=384MB