diff --git a/themes/simple/components/Footer.js b/themes/simple/components/Footer.js
index afd8431e74c..5f3a69a4cc1 100644
--- a/themes/simple/components/Footer.js
+++ b/themes/simple/components/Footer.js
@@ -29,7 +29,7 @@ export default function Footer(props) {
           {siteConfig('BEI_AN') && (
             <a
               href='https://beian.miit.gov.cn/'
-              className='text-black dark:text-gray-200 no-underline hover:underline ml-4'>
+              className='no-underline hover:underline ml-4'>
               {siteConfig('BEI_AN')}
             </a>
           )}