diff --git a/tests/functional/fixtures/docker-compose.yml b/tests/functional/fixtures/docker-compose.yml
index 134f2663f..e4869fbe0 100644
--- a/tests/functional/fixtures/docker-compose.yml
+++ b/tests/functional/fixtures/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: '3.5'
 
 networks:
   gitlab-network: