diff --git a/docker-compose.test.yml b/docker-compose.test.yml
index 7caf048..d0116fa 100644
--- a/docker-compose.test.yml
+++ b/docker-compose.test.yml
@@ -1,4 +1,3 @@
-version: '2.4'
 services:
   sut:
     image: appropriate/curl
diff --git a/docker-compose.yml b/docker-compose.yml
index 087f197..40cc02a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,4 +1,3 @@
-version: '2'
 services:
   mysql:
     image: mysql:9.2