diff --git a/mailcow/src/mailcow-dockerized/docker-compose.yml b/mailcow/src/mailcow-dockerized/docker-compose.yml
index 2c9c93a..ff1e5eb 100644
--- a/mailcow/src/mailcow-dockerized/docker-compose.yml
+++ b/mailcow/src/mailcow-dockerized/docker-compose.yml
@@ -552,7 +552,7 @@
     driver: bridge
     driver_opts:
       com.docker.network.bridge.name: br-mailcow
-    enable_ipv6: true
+    enable_ipv6: false
     ipam:
       driver: default
       config: