diff --git a/builder/docker-compose.yml b/builder/docker-compose.yml
index 9eed916..0ab026c 100644
--- a/builder/docker-compose.yml
+++ b/builder/docker-compose.yml
@@ -1,5 +1,3 @@
-version: '2.0'
-
 services:
   ubuntu-1804:
     command: ./build.sh
diff --git a/test/docker-compose.yml b/test/docker-compose.yml
index 57215bd..2bb5760 100644
--- a/test/docker-compose.yml
+++ b/test/docker-compose.yml
@@ -1,5 +1,3 @@
-version: '2.0'
-
 services:
   ubuntu-1804:
     image: ubuntu:bionic