Obsolete
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 1723e8a..5c95b8a 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -1,4 +1,3 @@
-version: '3'
 services:
   web: # must agree with Rakefile
     image: whimsy-web