How a user can update own profile - updateUser

@DMehaffy alright I followed the documentation and found a really nice tutorials as well.

The policy works very well for a post command. I have tried it in postman. Now I want that GraphQL use the policy as well. I read the following documentation GraphQL - Strapi Developer Documentation

Here is my code
// extensions/users-permissions/config/schema.graphql.js

module.exports = {
  resolver: {
    Mutation: {
        updateUser: {
            description: 'Update an existing user',
            policies: ['plugins::users-permissions.userUpdate'],
        },
    },
  },
};

The description is working but the policy just get ignored. (Strapi 3.5.2)
Also tried to change ‘plugins::users-permissions.userUpdate’ to ‘userUpdate’ but nothing happend.

What I do wrong?