diff --git a/docker/docker-compose.dev.yml b/docker/docker-compose.dev.yml
index cd640e73b2..92ed06742c 100644
--- a/docker/docker-compose.dev.yml
+++ b/docker/docker-compose.dev.yml
@@ -1,6 +1,4 @@
 ---
-version: "2.1"
-
 volumes:
   elasticsearch_data:
   percona_data:
diff --git a/docker/docker-compose.pmm.yml b/docker/docker-compose.pmm.yml
index bcd766ad8a..ea698f75fa 100644
--- a/docker/docker-compose.pmm.yml
+++ b/docker/docker-compose.pmm.yml
@@ -1,6 +1,4 @@
 ---
-version: "2.1"
-
 volumes:
   pmm_prometheus_data:
   pmm_consul_data:
diff --git a/docker/docker-compose.varnish.yml b/docker/docker-compose.varnish.yml
index 2069acc4eb..a9d4d9ef42 100644
--- a/docker/docker-compose.varnish.yml
+++ b/docker/docker-compose.varnish.yml
@@ -1,6 +1,4 @@
 ---
-version: "2.1"
-
 services:
 
   varnish: