diff --git a/docker-compose.yml b/docker-compose.yml
index 34b917f6..26c78fdf 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -222,6 +222,7 @@ services:
       restart: always
       networks:
         mailcow-network:
+          ipv4_address: 172.22.1.251
           aliases:
             - nginx