diff --git a/k8s/infra/postgres.yaml b/k8s/infra/postgres.yaml
index af1d012..40697eb 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@sha256:9a8afca54e7861fd90fab5fdf4c42477a6b1cb7d293595148e674e0a3181de15
+        image: postgres:18.6-alpine@sha256:432b3b824c0769275ec9b0947736ef8b376d6997bcaa9de29818f613819c2feb
         args:
         - -c
         - shared_buffers=384MB