diff --git a/README.md b/README.md
index 75fc7a5..cda1ffb 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,8 @@
 ```
 sudo apt install python3-pip
 #sudo pip3 install pip3 --upgrade
-pip3 install pybuilder python-terraform ddadevops --user
-pip3 install boto3 --user
+pip3 install pybuilder ddadevops --user
+pip3 install boto3 python-terraform --user
 export PATH=$PATH:~/.local/bin
 ```
 
diff --git a/build.py b/build.py
index 84fe732..0c10d73 100644
--- a/build.py
+++ b/build.py
@@ -27,7 +27,7 @@ use_plugin("python.distutils")
 default_task = "publish"
 
 name = "ddadevops"
-version = "0.4.0.dev20"
+version = "0.4.0"
 summary = "tools to support builds combining gopass, terraform, dda-pallet, aws & hetzner-cloud"
 description = __doc__
 authors = [Author("meissa GmbH", "buero@meissa-gmbh.de")]
diff --git a/src/main/python/ddadevops/aws_mixin.py b/src/main/python/ddadevops/aws_mixin.py
index 375ffbd..bdc9c80 100644
--- a/src/main/python/ddadevops/aws_mixin.py
+++ b/src/main/python/ddadevops/aws_mixin.py
@@ -22,6 +22,7 @@ class AwsMixin(DevopsTerraformBuild):
     def __init__(self, project, config):
         super().__init__(project, config)
         project.build_depends_on('boto3')
+        project.build_depends_on('mfa')
         aws_mixin_config = config['AwsMixin']
         self.account_name = aws_mixin_config['account_name']
         self.account_id = aws_mixin_config['account_id']