diff --git a/tests/pytest.ini b/tests/pytest.ini
index 807f0a33..9e27e99c 100644
--- a/tests/pytest.ini
+++ b/tests/pytest.ini
@@ -1,4 +1,3 @@
 [pytest]
 filterwarnings =
     ignore:Mutable config will be deprecated in the future.:DeprecationWarning
-    ignore:I/O operation on closed file.:ValueError