diff --git a/codecov_cli/services/upload/__init__.py b/codecov_cli/services/upload/__init__.py
index 75cf1328..f6e65e76 100644
--- a/codecov_cli/services/upload/__init__.py
+++ b/codecov_cli/services/upload/__init__.py
@@ -52,7 +52,7 @@ def do_upload_logic(
     network_filter: typing.Optional[str],
     network_prefix: typing.Optional[str],
     network_root_folder: Path,
-    parent_sha: typing.Optional[str],
+    parent_sha: typing.Optional[str] = None,
     plugin_names: typing.List[str],
     pull_request_number: typing.Optional[str],
     report_code: str,