diff --git a/src/main/python/ddadevops/aws_mixin.py b/src/main/python/ddadevops/aws_mixin.py
index 870267c..e9d7813 100644
--- a/src/main/python/ddadevops/aws_mixin.py
+++ b/src/main/python/ddadevops/aws_mixin.py
@@ -4,8 +4,9 @@ from .devops_terraform_build import DevopsTerraformBuild
 
 
 def add_aws_mixin_config(config, account_name):
-    return config.update({'AwsMixin':
-                          {'account_name': account_name}})
+    config.update({'AwsMixin':
+                   {'account_name': account_name}})
+    return config
 
 
 class AwsMixin(DevopsTerraformBuild):
@@ -30,7 +31,7 @@ class AwsMixin(DevopsTerraformBuild):
         except:
             tf.workspace('new', self.stage)
         return tf
-    
+
     def plan(self):
         tf = self.init_client()
         tf.plan(capture_output=False, var=self.project_vars,
diff --git a/src/main/python/ddadevops/dda_pallet_mixin.py b/src/main/python/ddadevops/dda_pallet_mixin.py
index b82105d..35c0b2c 100644
--- a/src/main/python/ddadevops/dda_pallet_mixin.py
+++ b/src/main/python/ddadevops/dda_pallet_mixin.py
@@ -4,18 +4,19 @@ from .devops_build import DevopsBuild
 
 
 def add_dda_pallet_mixin_config(config, tenant, application, domain_file_name):
-    return config.update({'DdaPalletMixin':
-                          {'tenant': tenant,
-                           'application': application,
-                           'domain_file_name': domain_file_name,
-                           'target_edn_name': 'target.edn',
-                           'jar_file': 'target/meissa-tenant-server.jar',
-                           'target_template':
-                           """
+    config.update({'DdaPalletMixin':
+                   {'tenant': tenant,
+                    'application': application,
+                    'domain_file_name': domain_file_name,
+                    'target_edn_name': 'target.edn',
+                    'jar_file': 'target/meissa-tenant-server.jar',
+                    'target_template':
+                    """
 {:existing [{:node-name "$node_name"
              :node-ip "$ipv4"}]
  :provisioning-user {:login "root"}}
 """, }})
+    return config
 
 
 class DdaPalletMixin(DevopsBuild):
diff --git a/src/main/python/ddadevops/devops_terraform_build.py b/src/main/python/ddadevops/devops_terraform_build.py
index c9fe2ae..3e2167f 100644
--- a/src/main/python/ddadevops/devops_terraform_build.py
+++ b/src/main/python/ddadevops/devops_terraform_build.py
@@ -9,12 +9,13 @@ def create_devops_terraform_build_config(stage, project_root_path, build_commons
                                          account_name, additional_vars, tf_import_name, tf_import_resource):
     ret = create_devops_build_config(
         stage, project_root_path, build_commons_path, module)
-    return ret.update({'account_name': account_name,
-                       'additional_vars': additional_vars,
-                       'tf_import_name': tf_import_name,
-                       'tf_import_resource': tf_import_resource,
-                       'terraform_build_commons_dir_name': 'terraform',
-                       'output_json_name': 'output.json'})
+    ret.update({'account_name': account_name,
+                'additional_vars': additional_vars,
+                'tf_import_name': tf_import_name,
+                'tf_import_resource': tf_import_resource,
+                'terraform_build_commons_dir_name': 'terraform',
+                'output_json_name': 'output.json'})
+    return ret
 
 
 class DevopsTerraformBuild(DevopsBuild):
diff --git a/src/main/python/ddadevops/hetzner_mixin.py b/src/main/python/ddadevops/hetzner_mixin.py
index 014d37b..c3a451e 100644
--- a/src/main/python/ddadevops/hetzner_mixin.py
+++ b/src/main/python/ddadevops/hetzner_mixin.py
@@ -3,8 +3,9 @@ from .devops_terraform_build import DevopsTerraformBuild
 
 
 def add_hetzner_mixin_config(config):
-    return config.update({'HetznerMixin':
-                          {'HETZNER_API_KEY_PATH_ENVIRONMENT': 'HETZNER_API_KEY_PATH'}})
+    config.update({'HetznerMixin':
+                   {'HETZNER_API_KEY_PATH_ENVIRONMENT': 'HETZNER_API_KEY_PATH'}})
+    return config
 
 
 class HetznerMixin(DevopsTerraformBuild):