diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index e7400c9..7b5e8e2 100644
--- a/k8s/infra/postgres.yaml
+++ b/k8s/infra/postgres.yaml
@@ -52,7 +52,7 @@ spec:
     spec:
       containers:
       - name: postgres
-        image: postgres:18.1-alpine@sha256:30f2a9b6f470bece98c10f98952e720c881dc3ef987cf06b5ed4b698a350c1bb
+        image: postgres:18.1-alpine@sha256:4eb15de8e7b692c02427a2df278d18eb89422a534e428efb6d43c968250334d4
         args:
         - -c
         - shared_buffers=384MB