Maven の依存関係が 501 エラーで失敗するのはなぜですか?

[ERROR] Failed to transfer artifact org.apache.maven.wagon:wagon-ssh:pom:2.1 from/to central (http://repo.maven.apache.org/maven2):
Failed to transfer file: http://repo.maven.apache.org/maven2/org/apache/maven/wagon/wagon-ssh/2.1/wagon-ssh-2.1.pom.
Return code is: 501 , ReasonPhrase:HTTPS Required.

<settings>
  <profiles>
    <profile>
      <id>central-https</id>
      <repositories>
        <repository>
          <id>central</id>
          <url>https://repo.maven.apache.org/maven2</url>
        </repository>
      </repositories>
    </profile>
  </profiles>
</settings>

mvn -P central-https package