diff --git a/docker-compose.yml b/docker-compose.yml
index 8cd58e3a..6cc14f8e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,5 +1,5 @@
 # Use postgres/example user/password credentials
-version: '3.1'
+version: '2.2'
 
 services: