diff --git a/docker-compose/orion-ld.yml b/docker-compose/orion-ld.yml
index ca2abfa..f103ca8 100644
--- a/docker-compose/orion-ld.yml
+++ b/docker-compose/orion-ld.yml
@@ -16,7 +16,6 @@
 # 
 # see: https://github.com/FIWARE/helm-charts/
 #
-version: '3.9'
 services:
   # Orion-LD is an NGSI-LD context broker
   orion-ld:
diff --git a/docker-compose/scorpio.yml b/docker-compose/scorpio.yml
index e6de4b4..319feda 100644
--- a/docker-compose/scorpio.yml
+++ b/docker-compose/scorpio.yml
@@ -16,7 +16,6 @@
 # 
 # see: https://github.com/FIWARE/helm-charts/
 #
-version: '3.9'
 services:
   # Scorpio is an NGSI-LD context broker
   scorpio:
diff --git a/docker-compose/stellio.yml b/docker-compose/stellio.yml
index fbeaffa..80ed9c4 100644
--- a/docker-compose/stellio.yml
+++ b/docker-compose/stellio.yml
@@ -16,7 +16,6 @@
 # 
 # see: https://github.com/FIWARE/helm-charts/
 #
-version: '3.9'
 services:
   api-gateway:
     container_name: stellio-api-gateway