diff --git a/README.md b/README.md
index 5ffe3690..9b8a631a 100644
--- a/README.md
+++ b/README.md
@@ -47,8 +47,8 @@ LocalSend is a cross-platform app that enables secure communication between devi
 
 Browser testing via
 
-<a href="https://www.lambdatest.com/" target="_blank">
-    <img src="https://www.lambdatest.com/blue-logo.png" style="vertical-align: middle;" width="250" height="45" />
+<a href="https://www.testmuai.com/?utm_medium=sponsor&utm_source=localsend" target="_blank">
+    <img src="https://localsend.org/img/sponsors/tesmu.svg" style="vertical-align: middle;" width="250" height="45" />
 </a>
 
 ## Screenshots