diff --git a/docker-compose.override.unit_tests.yml b/docker-compose.override.unit_tests.yml
index a3d15b9350..a492dbdaad 100644
--- a/docker-compose.override.unit_tests.yml
+++ b/docker-compose.override.unit_tests.yml
@@ -1,5 +1,4 @@
 ---
-version: '3.8'
 services:
   nginx:
     image: busybox:1.36.1-musl