diff --git a/git/util.py b/git/util.py
index a3748f0fe..f6dedf0f2 100644
--- a/git/util.py
+++ b/git/util.py
@@ -935,7 +935,8 @@ def _obtain_lock_or_raise(self) -> None:
             )
 
         try:
-            open(lock_file, mode='w', closefd=True)
+            with open(lock_file, mode='w'):
+                pass
         except OSError as e:
             raise IOError(str(e)) from e