diff --git a/mailman_sync.py b/mailman_sync.py
index a2dcb3d..6ed93f3 100755
--- a/mailman_sync.py
+++ b/mailman_sync.py
@@ -28,7 +28,7 @@ def sync_members(mailman_bin: Path, mailing_list: str, members: list[str]):
         capture_output=True,
         check=True,
     )
-    print(output)
+    print(output.stdout.decode('ascii'))
 
 
 def main(mailman_bin: Path, api: str, token: str, list_suffix: str):
@@ -39,7 +39,7 @@ def main(mailman_bin: Path, api: str, token: str, list_suffix: str):
 
     existing_lists = subprocess.run(
         [mailman_bin / "list_lists", "-b"], capture_output=True, check=True
-    ).stdout.split(b"\n")
+    ).stdout.decode('ascii').split("\n")
     certification_lists = r.json()
     for name, members in certification_lists.items():
         list_name = name + list_suffix