diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index 58263f9..445987e 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: '3.3'
 
 services:
   web: