diff --git a/lib/services/buy/simplex/simplex_api.dart b/lib/services/buy/simplex/simplex_api.dart
index 186916724..9df493d3e 100644
--- a/lib/services/buy/simplex/simplex_api.dart
+++ b/lib/services/buy/simplex/simplex_api.dart
@@ -16,7 +16,7 @@ import 'package:stackwallet/utilities/prefs.dart';
 import 'package:url_launcher/url_launcher.dart';
 
 class SimplexAPI {
-  static const String authority = "sandbox-api.stackwallet.com";
+  static const String authority = "simplex-sandbox.stackwallet.com";
   // static const String authority = "localhost";
   static const String scheme = authority == "localhost" ? "http" : "https";