diff --git a/docker-compose.yml b/docker-compose.yml
index f390151c7..9e6886dfc 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,3 @@
-version: '3'
 services:
   # credit to Knex.js team for the following mssql setup here:
   mssql: