diff --git a/.tool-versions b/.tool-versions
index 860f5bbb..8b869bd7 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-python 3.8.10
\ No newline at end of file
+python 3.8.10
diff --git a/jwt/exceptions.py b/jwt/exceptions.py
index 735f6f5d..d3cbf31f 100644
--- a/jwt/exceptions.py
+++ b/jwt/exceptions.py
@@ -69,5 +69,6 @@ class PyJWKClientError(PyJWTError):
 class PyJWKClientConnectionError(PyJWKClientError):
     pass
 
+
 class PyJWKAsyncDisabledError(PyJWKClientError):
-    pass
\ No newline at end of file
+    pass
diff --git a/jwt/jwks_client.py b/jwt/jwks_client.py
index 738a04d9..2a7d6043 100644
--- a/jwt/jwks_client.py
+++ b/jwt/jwks_client.py
@@ -7,18 +7,16 @@
 
 from .api_jwk import PyJWK, PyJWKSet
 from .api_jwt import decode_complete as decode_token
-from .exceptions import PyJWKClientConnectionError, PyJWKClientError, PyJWKClientError, PyJWKAsyncDisabledError
+from .exceptions import (
+    PyJWKAsyncDisabledError,
+    PyJWKClientConnectionError,
+    PyJWKClientError,
+)
 from .jwk_set_cache import JWKSetCache
 
-
-
 try:
     from async_lru import alru_cache
-    from httpx import (
-        AsyncClient,
-        HTTPError,
-        Timeout
-    )
+    from httpx import AsyncClient, HTTPError, Timeout
 
     has_async = True
 except ModuleNotFoundError:
@@ -80,7 +78,7 @@ def fetch_data(self) -> Any:
         finally:
             if self.jwk_set_cache is not None:
                 self.jwk_set_cache.put(jwk_set)
-    
+
     async def fetch_data_async(self) -> Any:
         if not has_async:
             raise PyJWKAsyncDisabledError()
@@ -102,7 +100,6 @@ async def fetch_data_async(self) -> Any:
             if self.jwk_set_cache is not None:
                 self.jwk_set_cache.put(jwk_set)
 
-
     def get_jwk_set(self, refresh: bool = False) -> PyJWKSet:
         data = None
         if self.jwk_set_cache is not None and not refresh:
@@ -115,7 +112,7 @@ def get_jwk_set(self, refresh: bool = False) -> PyJWKSet:
             raise PyJWKClientError("The JWKS endpoint did not return a JSON object")
 
         return PyJWKSet.from_dict(data)
-    
+
     async def get_jwk_set_async(self, refresh: bool = False) -> PyJWKSet:
         if not has_async:
             raise PyJWKAsyncDisabledError()
@@ -143,7 +140,7 @@ def get_signing_keys(self, refresh: bool = False) -> List[PyJWK]:
             raise PyJWKClientError("The JWKS endpoint did not contain any signing keys")
 
         return signing_keys
-    
+
     async def get_signing_keys_async(self, refresh: bool = False) -> List[PyJWK]:
         if not has_async:
             raise PyJWKAsyncDisabledError()
@@ -197,7 +194,7 @@ def get_signing_key_from_jwt(self, token: str) -> PyJWK:
         unverified = decode_token(token, options={"verify_signature": False})
         header = unverified["header"]
         return self.get_signing_key(header.get("kid"))
-    
+
     async def get_signing_key_from_jwt_async(self, token: str) -> PyJWK:
         if not has_async:
             raise PyJWKAsyncDisabledError()
diff --git a/tests/test_jwks_client.py b/tests/test_jwks_client.py
index 2feccdb7..c12bf6b8 100644
--- a/tests/test_jwks_client.py
+++ b/tests/test_jwks_client.py
@@ -55,9 +55,12 @@ def mocked_success_response(data):
         urlopen_mock.return_value = response
         yield urlopen_mock
 
+
 @contextlib.contextmanager
 async def mocked_success_response_async(data):
-    with mock.patch.object(jwt.jwks_client, "AsyncClient", mock.AsyncMock()) as async_client_mock:
+    with mock.patch.object(
+        jwt.jwks_client, "AsyncClient", mock.AsyncMock()
+    ) as async_client_mock:
         response = mock.AsyncMock()
         response.__aenter__ = mock.AsyncMock(return_value=response)
         response.__aexit__ = mock.AsyncMock()
@@ -229,7 +232,6 @@ def test_get_signing_key_from_jwt(self):
             "gty": "client-credentials",
         }
 
-
     @pytest.mark.asyncio
     async def test_get_signing_key_from_jwt_async(self):
         token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ik5FRTFRVVJCT1RNNE16STVSa0ZETlRZeE9UVTFNRGcyT0Rnd1EwVXpNVGsxUWpZeVJrUkZRdyJ9.eyJpc3MiOiJodHRwczovL2Rldi04N2V2eDlydS5hdXRoMC5jb20vIiwic3ViIjoiYVc0Q2NhNzl4UmVMV1V6MGFFMkg2a0QwTzNjWEJWdENAY2xpZW50cyIsImF1ZCI6Imh0dHBzOi8vZXhwZW5zZXMtYXBpIiwiaWF0IjoxNTcyMDA2OTU0LCJleHAiOjE1NzIwMDY5NjQsImF6cCI6ImFXNENjYTc5eFJlTFdVejBhRTJINmtEME8zY1hCVnRDIiwiZ3R5IjoiY2xpZW50LWNyZWRlbnRpYWxzIn0.PUxE7xn52aTCohGiWoSdMBZGiYAHwE5FYie0Y1qUT68IHSTXwXVd6hn02HTah6epvHHVKA2FqcFZ4GGv5VTHEvYpeggiiZMgbxFrmTEY0csL6VNkX1eaJGcuehwQCRBKRLL3zKmA5IKGy5GeUnIbpPHLHDxr-GXvgFzsdsyWlVQvPX2xjeaQ217r2PtxDeqjlf66UYl6oY6AqNS8DH3iryCvIfCcybRZkc_hdy-6ZMoKT6Piijvk_aXdm7-QQqKJFHLuEqrVSOuBqqiNfVrG27QzAPuPOxvfXTVLXL2jek5meH6n-VWgrBdoMFH93QEszEDowDAEhQPHVs0xj7SIzA"