diff --git a/index.html b/index.html
index 672d02a36..18fab8db6 100644
--- a/index.html
+++ b/index.html
@@ -16,7 +16,7 @@
         executingAt: 'Master App',
         visible: true,
         topMargin: 85,
-        urlPrefix: 'http://localhost:1337/',   /* 'http://localhost:1337/'   */   /*  'https://develop.advancedalgos.net/'  */
+        urlPrefix: 'https://charts-dev.advancedalgos.net/',   /* 'http://localhost:1337/'   */   /*  'https://charts-dev.advancedalgos.net/'  */
         graphQL: {
             masterAppApiUrl: 'https://app-api.advancedalgos.net/graphql'
         },