diff --git a/solution/pulse/api/users/authentication.py b/solution/pulse/api/users/authentication.py
index 72241c8..aa6a6bb 100644
--- a/solution/pulse/api/users/authentication.py
+++ b/solution/pulse/api/users/authentication.py
@@ -15,7 +15,9 @@ class JWTAuthentication(BaseAuthentication):
         return "Provide a valid token in the 'Authorization' header"
 
     def authenticate(self, request):
-        if not IsAuthenticated in getattr(request.resolver_match.func.cls, "permission_classes", []):
+        if IsAuthenticated not in getattr(
+            request.resolver_match.func.cls, "permission_classes", []
+        ):
             return None
 
         token = request.headers.get("Authorization", "").split("Bearer ")[-1]
diff --git a/solution/pulse/api/users/urls.py b/solution/pulse/api/users/urls.py
index fa74ac2..2113f61 100644
--- a/solution/pulse/api/users/urls.py
+++ b/solution/pulse/api/users/urls.py
@@ -42,5 +42,5 @@ urlpatterns = [
         "me/updatePassword",
         api.users.views.PasswordChangeApiView.as_view(),
         name="password-change",
-    )
+    ),
 ]
diff --git a/solution/pulse/api/users/views.py b/solution/pulse/api/users/views.py
index 82f7316..daf532d 100644
--- a/solution/pulse/api/users/views.py
+++ b/solution/pulse/api/users/views.py
@@ -210,7 +210,10 @@ class PasswordChangeApiView(APIView):
             old_password = serializer.validated_data.get("oldPassword")
             new_password = serializer.validated_data.get("newPassword")
 
-            if bcrypt.checkpw(old_password.encode("utf-8"), request.user.password.encode("utf-8")):
+            if bcrypt.checkpw(
+                old_password.encode("utf-8"),
+                request.user.password.encode("utf-8"),
+            ):
                 password_hash = bcrypt.hashpw(
                     new_password.encode("utf-8"), bcrypt.gensalt()
                 ).decode("utf-8")