diff --git a/docker-compose.yml b/docker-compose.yml
index 1d9b9f7..ed2169b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,5 +1,4 @@
 ---
-version: '3.3'
 
 # todo: remove profiles from this file and from the dce/dc alias
 include: