diff --git a/pkgs/development/python-modules/exchangelib/skip_failing_test.patch b/pkgs/development/python-modules/exchangelib/skip_failing_test.patch
deleted file mode 100644
index 6c070acaf75a..000000000000
--- a/pkgs/development/python-modules/exchangelib/skip_failing_test.patch
+++ /dev/null
@@ -1,18 +0,0 @@
---- ./tests/__init__.py	1980-01-02 00:00:00.000000000 +0000
-+++ ./tests/__init__.py	1980-01-02 00:00:00.000000000 +0000
-@@ -301,6 +301,7 @@
-             self.assertEqual(id(base_p.thread_pool), id(p.thread_pool))
-             self.assertEqual(id(base_p._session_pool), id(p._session_pool))
- 
-+    @unittest.skip("no network connection inside the Nix sandbox")
-     def test_close(self):
-         proc = psutil.Process()
-         ip_addresses = {info[4][0] for info in socket.getaddrinfo(
-@@ -1257,6 +1258,7 @@
-         )
- 
- 
-+@unittest.skip("no network connection inside the Nix sandbox")
- class EWSTest(unittest.TestCase):
-     @classmethod
-     def setUpClass(cls):