diff --git a/ccp/modules/datashield-compose.yml b/ccp/modules/datashield-compose.yml
index bd486ea..edca65c 100644
--- a/ccp/modules/datashield-compose.yml
+++ b/ccp/modules/datashield-compose.yml
@@ -1,3 +1,5 @@
+version: "3.7"
+
 services:
   rstudio:
     container_name: bridgehead-rstudio
diff --git a/ccp/modules/dnpm-compose.yml b/ccp/modules/dnpm-compose.yml
index ae4c118..5a56e97 100644
--- a/ccp/modules/dnpm-compose.yml
+++ b/ccp/modules/dnpm-compose.yml
@@ -1,3 +1,5 @@
+version: "3.7"
+
 services:
   beam-proxy:
     environment:
diff --git a/ccp/modules/exporter-compose.yml b/ccp/modules/exporter-compose.yml
index adfce0b..5922690 100644
--- a/ccp/modules/exporter-compose.yml
+++ b/ccp/modules/exporter-compose.yml
@@ -1,3 +1,5 @@
+version: "3.7"
+
 services:
   exporter:
     image: docker.verbis.dkfz.de/ccp/dktk-exporter:latest
diff --git a/ccp/modules/login-compose.yml b/ccp/modules/login-compose.yml
index db979b5..787d4b2 100644
--- a/ccp/modules/login-compose.yml
+++ b/ccp/modules/login-compose.yml
@@ -1,3 +1,5 @@
+version: "3.7"
+
 services:
 
   login-db:
diff --git a/ccp/modules/mtba-compose.yml b/ccp/modules/mtba-compose.yml
index c6cf474..670d990 100644
--- a/ccp/modules/mtba-compose.yml
+++ b/ccp/modules/mtba-compose.yml
@@ -1,3 +1,5 @@
+version: "3.7"
+
 services:
   mtba:
     image: docker.verbis.dkfz.de/cache/samply/mtba:1.0.0