diff --git a/readme.md b/readme.md
index 5fb6351..7cb6a64 100644
--- a/readme.md
+++ b/readme.md
@@ -5,7 +5,7 @@
 <h1 align="center">WordPress Simple SMTP</h1>
 
 <p align="center">
-  <a href="https://www.codefactor.io/repository/github/soup-bowl/wp-simple-smtp"><img src="https://www.codefactor.io/repository/github/soup-bowl/wp-simple-smtp/badge" />
+  <a href="https://sonar.subo.dev/dashboard?id=soup-bowl_wp-simple-smtp_AZJthyW4wvap7F1pEwYC"><img src="https://sonar.subo.dev/api/project_badges/measure?project=soup-bowl_wp-simple-smtp_AZJthyW4wvap7F1pEwYC&metric=sqale_rating&token=sqb_e0b3770ae30bcf277cbcf3ce8bc7e4343de9ff49" />
   <a href="https://github.com/soup-bowl/wp-simple-smtp/actions/workflows/test.yml"><img src="https://github.com/soup-bowl/wp-simple-smtp/actions/workflows/test.yml/badge.svg" alt="Per-commit CI Test" /></a>
   <a href="https://wordpress.org/plugins/simple-smtp/">
   <img src="https://img.shields.io/wordpress/plugin/dm/simple-smtp?logo=wordpress&color=blue" alt="WordPress Plugin Downloads" />