diff --git a/compose.yml b/compose.yml
index 26da957..a51f0dc 100644
--- a/compose.yml
+++ b/compose.yml
@@ -131,7 +131,7 @@ services:
       - default
 
   smtp:
-    image: ghcr.io/mailu/postfix:2024.06.61
+    image: ghcr.io/mailu/postfix:2024.06.66
     environment: *default-env
     secrets:
       - secret_key