diff --git a/script/install_integration_requirements.py b/script/install_integration_requirements.py
index ab91ea715577c3..91c9f6a8ed04ae 100644
--- a/script/install_integration_requirements.py
+++ b/script/install_integration_requirements.py
@@ -45,6 +45,7 @@ def main() -> int | None:
         cmd,
         check=True,
     )
+    return None
 
 
 if __name__ == "__main__":