diff --git a/examples/docker-maxmind/docker-compose.yml b/examples/docker-maxmind/docker-compose.yml
index c5fd7a7..3c74926 100644
--- a/examples/docker-maxmind/docker-compose.yml
+++ b/examples/docker-maxmind/docker-compose.yml
@@ -1,4 +1,3 @@
-version: "3"
 services:
 
   endlessh: