Await is a reserved word error inside async function

Question

I am struggling to figure out the issue with the following syntax:

export const sendVerificationEmail = async () =>
  (dispatch) => {
    try {
      dispatch({ type: EMAIL_FETCHING, payload: true });
      await Auth.sendEmailVerification();
      dispatch({ type: EMAIL_FETCHING, payload: false }))
    } catch (error) {
      dispatch({ type: EMAIL_FETCHING, payload: false });
      throw new Error(error);
    }
  };

I keep getting error saying:

await is a reserved word

...but isn't it legal within an async function?

The dispatch bit is coming from the react-thunk library.