diff --git a/tests/test_utils_request.py b/tests/test_utils_request.py
index 5ee772c0b..8bc7922b6 100644
--- a/tests/test_utils_request.py
+++ b/tests/test_utils_request.py
@@ -52,7 +52,7 @@ class UtilsRequestTest(unittest.TestCase):
 class FingerprintTest(unittest.TestCase):
     maxDiff = None
 
-    function = staticmethod(fingerprint)
+    function: staticmethod = staticmethod(fingerprint)
     cache: Union[
         "WeakKeyDictionary[Request, Dict[Tuple[Optional[Tuple[bytes, ...]], bool], bytes]]",
         "WeakKeyDictionary[Request, Dict[Tuple[Optional[Tuple[bytes, ...]], bool], str]]",
diff --git a/tox.ini b/tox.ini
index 4d1bb574d..2110e1020 100644
--- a/tox.ini
+++ b/tox.ini
@@ -38,7 +38,7 @@ install_command =
 basepython = python3
 deps =
     lxml-stubs==0.2.0
-    mypy==0.910
+    mypy==0.971
     types-pyOpenSSL==20.0.3
     types-setuptools==57.0.0
 commands =