[Answered ]-How to update password of Auth user in django rest framework

You need to override serializer’s update method like this:

class UserSerializer(serializers.ModelSerializer):

    class Meta:
        model = User
        fields='__all__' 

    def update(self, instance, validated_data):
        if 'password' in validated_data:
            password = validated_data.pop('password', None)
            instance.set_password(password)
        return super().update(instance, validated_data)