diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index c5bdf42..eea5880 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:d3e64d36360a9f40c30fbbc5dd2dde799fe35f8537500c8b067551a6497f50f4
+        image: postgres:18.4-alpine@sha256:1b1689b20d16a014a3d195653381cf2caa75a41a92d93b255a9d6ea29fd353aa
         args:
         - -c
         - shared_buffers=384MB