diff --git a/cd/project.py b/cd/project.py
index 3d2e813..3ff02cd 100644
--- a/cd/project.py
+++ b/cd/project.py
@@ -15,7 +15,7 @@ ROOT = [
 
 
 class Project:
-    def __init__(self, projects):
+    def __init__(self, projects) -> None:
         self.projects = projects
         # branch
         for variable in BRANCH:
diff --git a/cd/projects.py b/cd/projects.py
index 4144f6a..6f7c96a 100644
--- a/cd/projects.py
+++ b/cd/projects.py
@@ -11,7 +11,7 @@ SERVER_URL = [
 
 
 class Projects:
-    def __init__(self, environment):
+    def __init__(self, environment) -> None:
         self.environment = environment
         # group, name
         for variable in GROUP_AND_NAME: