diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index 786c3d0..825f642 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@sha256:52098013b4b64a746626437d38afc03cabff6cdeb4d3d92e2342aa95f0ce56ea
+        image: postgres:18.3-alpine@sha256:d164db0c6b4fc00e438f160b4480f207f3f837cf60f781c61670af4ef71a8062
         args:
         - -c
         - shared_buffers=384MB