diff --git a/main.py b/main.py
index 8388db3..0cc41c2 100644
--- a/main.py
+++ b/main.py
@@ -48,6 +48,9 @@ class TestUDP(TestCase):
     def test_json(self) -> None:
         self.sock.sendto(device.json_req_data().encode(), UDP_ADDR)
 
+    def tearDown(self) -> None:
+        self.sock.close()
+
 
 class TestHTTP(TestCase):