diff --git a/src/fastmcp/server/auth/providers/bearer.py b/src/fastmcp/server/auth/providers/bearer.py
index a18d30b16..6ffffa909 100644
--- a/src/fastmcp/server/auth/providers/bearer.py
+++ b/src/fastmcp/server/auth/providers/bearer.py
@@ -312,7 +312,7 @@ class BearerAuthProvider(OAuthProvider):
             # Validate audience if configured
             if self.audience:
                 aud = claims.get("aud")
-                
+
                 # Handle different combinations of audience types
                 if isinstance(self.audience, list):
                     # self.audience is a list - check if any expected audience is present
diff --git a/tests/auth/providers/test_bearer.py b/tests/auth/providers/test_bearer.py
index ba6692c54..efed070d4 100644
--- a/tests/auth/providers/test_bearer.py
+++ b/tests/auth/providers/test_bearer.py
@@ -446,7 +446,9 @@ class TestBearerToken:
         access_token = await provider.load_access_token(token)
         assert access_token is not None
 
-    async def test_provider_with_multiple_expected_audiences(self, rsa_key_pair: RSAKeyPair):
+    async def test_provider_with_multiple_expected_audiences(
+        self, rsa_key_pair: RSAKeyPair
+    ):
         """Test provider configured with multiple expected audiences."""
         provider = BearerAuthProvider(
             public_key=rsa_key_pair.public_key,