diff --git a/stacks/wordpress/docker-stack.yml b/stacks/wordpress/docker-stack.yml
index 6f6530f..23d353c 100644
--- a/stacks/wordpress/docker-stack.yml
+++ b/stacks/wordpress/docker-stack.yml
@@ -1,4 +1,4 @@
-version: '4'
+version: '3'
 
 services:
    db: