diff --git a/pkgs/development/python-modules/nbformat/default.nix b/pkgs/development/python-modules/nbformat/default.nix
index 7c31e3e4acc7..2274c41496dd 100644
--- a/pkgs/development/python-modules/nbformat/default.nix
+++ b/pkgs/development/python-modules/nbformat/default.nix
@@ -46,13 +46,7 @@ buildPythonPackage rec {
     testpath
   ];
 
-  disabledTestPaths = lib.optionals (pythonAtLeast "3.13") [
-    # ResourceWarning: unclosed database in <sqlite3.Connection object at 0x7ffff54954e0>
-    "tests/test_validator.py"
-    "tests/v4/test_convert.py"
-    "tests/v4/test_json.py"
-    "tests/v4/test_validate.py"
-  ];
+  pytestFlags = [ "-Wignore::pytest.PytestUnraisableExceptionWarning" ];
 
   # Some of the tests use localhost networking.
   __darwinAllowLocalNetworking = true;