diff --git a/.upptimerc.yml b/.upptimerc.yml
index bb4fdf1c6..26f0f2c21 100644
--- a/.upptimerc.yml
+++ b/.upptimerc.yml
@@ -169,7 +169,7 @@ sites:
 
   ### === koi rpc
   - name: rpc-koi-g1
-    url: http://g1.testnets.darwinia.network:99442
+    url: http://g1.testnets.darwinia.network:9942
     method: POST
     headers:
       - "Content-Type: application/json"