diff --git a/install/usr/share/swarmlab.io/sec/swarmlab-sec b/install/usr/share/swarmlab.io/sec/swarmlab-sec
index 955b890..b2424bf 100755
--- a/install/usr/share/swarmlab.io/sec/swarmlab-sec
+++ b/install/usr/share/swarmlab.io/sec/swarmlab-sec
@@ -266,7 +266,7 @@ fi
 
 
 cat << EOF > $Wdir/docker-compose.yml
-version: "2"
+version: "3"
 
 services: