INVALID_CHARSET schema lint error

table "users" has an invalid table charset utf16: only utf8, utf8mb4, and utf8mb3 charsets are supported.
table "users" has an invalid column charset utf16: only utf8, utf8mb4, and utf8mb3 charsets are supported.

ALTER TABLE users CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci;

ALTER TABLE users
  MODIFY display_name varchar(255)
  CHARACTER SET utf8mb4
  COLLATE utf8mb4_0900_ai_ci
  NOT NULL;