diff --git a/tests/test_file_operation/test_upload_and_update.py b/tests/test_file_operation/test_upload_and_update.py
index f5900bc..815a9a9 100644
--- a/tests/test_file_operation/test_upload_and_update.py
+++ b/tests/test_file_operation/test_upload_and_update.py
@@ -252,7 +252,7 @@ def test_ajax(repo):
     assert_resumable_upload_response(response, repo.id,
                                      resumable_file_name, True)
 
-    time.sleep (1.5)
+    time.sleep (2)
     repo_size = api.get_repo_size (repo.id)
     assert repo_size == total_size