requesting username and password using a PUT request

[AbdulHK]

every time I do a PUT request with a JWT token included in the header I am getting the following response even though the correct PREFIX is included in the authorisation header { "username": [ "This field is required." ], "password": [ "This field is required." ] }

the token generation, refresh,verify urls are working fine, but I can't update any user details for some reason, here is my views.py

class UserDetail(APIView):
    permission_classes = (IsOwner,IsAuthenticated,)

    """
    Retrieve, update or delete a user instance.
    """

    def get_object(self, pk):
        try:
            return User.objects.get(pk=pk)
        except User.DoesNotExist:
            raise Http404

    def get(self, request, pk, format=None):
        user = self.get_object(pk)
        serializer = UserSerializer(user)
        return Response(serializer.data)

    def put(self, request, pk, format=None):
        authenication_classes = (JSONWebTokenAuthentication)
        user = self.get_object(pk)
        serializer = UserSerializer(user, data=request.data)
        if serializer.is_valid():
            serializer.save()
            user = Profile.objects.get(id=pk)
            user.profile.updated = timezone.now()
            user.save()
            return Response(serializer.data, status=status.HTTP_200_OK)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

    def delete(self, request, pk, format=None):
        user = self.get_object(pk)
        user.delete()
        return Response(status=status.HTTP_204_NO_CONTENT)