diff --git a/.gitignore b/.gitignore
index fb7763b20..72a74976e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,7 @@ gocoverage*
 env.local
 run
 env
+.env
 
 # VSCode
 .vscode
diff --git a/db/mongodb/docker-compose-mongo.yml b/db/mongodb/docker-compose-mongo.yml
index eb63dc273..f3681e240 100644
--- a/db/mongodb/docker-compose-mongo.yml
+++ b/db/mongodb/docker-compose-mongo.yml
@@ -1,7 +1,4 @@
-version: '3.1'
-
 services:
-
   mongo:
     image: 'bitnami/mongodb:latest'
     restart: ${RESTART:-no}
diff --git a/dockerfiles/testsuite/docker-compose.yml b/dockerfiles/testsuite/docker-compose.yml
index 3a705862f..d92a9a0a9 100644
--- a/dockerfiles/testsuite/docker-compose.yml
+++ b/dockerfiles/testsuite/docker-compose.yml
@@ -1,5 +1,3 @@
-version: "3.7"
-
 services:
   seed:
     image: "ghcr.io/vocdoni/vocdoni-node:${TESTSUITE_BUILD_TAG:-latest}"
diff --git a/dockerfiles/vocdoninode/docker-compose.yml b/dockerfiles/vocdoninode/docker-compose.yml
index 79893c924..2477b376e 100644
--- a/dockerfiles/vocdoninode/docker-compose.yml
+++ b/dockerfiles/vocdoninode/docker-compose.yml
@@ -1,4 +1,3 @@
-version: "3.4"
 services:
   vocdoninode:
     build:
diff --git a/dockerfiles/vocone/docker-compose.yml b/dockerfiles/vocone/docker-compose.yml
index 8e8d809fb..9be63ec77 100644
--- a/dockerfiles/vocone/docker-compose.yml
+++ b/dockerfiles/vocone/docker-compose.yml
@@ -1,5 +1,3 @@
-version: "3.4"
-
 services:
   gateway:
     build: