diff --git a/docker-compose.yml b/docker-compose.yml
index 483d4c7bf4..c9eb4d61c2 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,5 +1,3 @@
-version: "3.9"
-
 x-robotoff-base-volumes:
   &robotoff-base-volumes
   - ./data:/opt/robotoff/data
diff --git a/docker/dev.yml b/docker/dev.yml
index 66536137c4..4c43f7afdd 100644
--- a/docker/dev.yml
+++ b/docker/dev.yml
@@ -1,5 +1,3 @@
-version: "3.9"
-
 x-robotoff-dev: &robotoff-dev
     image: openfoodfacts/robotoff:dev
     build:
diff --git a/docker/ml-gpu.yml b/docker/ml-gpu.yml
index a6b33d8423..99737b4fe9 100644
--- a/docker/ml-gpu.yml
+++ b/docker/ml-gpu.yml
@@ -4,8 +4,6 @@
 # instructions:
 # https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/user-guide.html#adding-the-nvidia-runtime
 
-version: "3.9"
-
 services:
   triton:
     restart: $RESTART_POLICY
diff --git a/docker/ml.yml b/docker/ml.yml
index 636f7add92..fc31794ca2 100644
--- a/docker/ml.yml
+++ b/docker/ml.yml
@@ -1,5 +1,3 @@
-version: "3.9"
-
 services:
   triton:
     restart: $RESTART_POLICY
diff --git a/docker/mongodb.yml b/docker/mongodb.yml
index ed3e941d16..bf2073a338 100644
--- a/docker/mongodb.yml
+++ b/docker/mongodb.yml
@@ -1,5 +1,3 @@
-version: "3.9"
-
 services:
   mongodb:
     image: mongo:4.4
diff --git a/docker/monitor.yml b/docker/monitor.yml
index b8d8d14a61..1ca0d0c236 100644
--- a/docker/monitor.yml
+++ b/docker/monitor.yml
@@ -1,4 +1,3 @@
-version: "3.9"
 services:
   api:
     command:
diff --git a/docker/prod.yml b/docker/prod.yml
index 83462556a1..7977ee7341 100644
--- a/docker/prod.yml
+++ b/docker/prod.yml
@@ -1,5 +1,3 @@
-version: "3.9"
-
 volumes:
   backup:
     external: true