diff --git a/catalyst/utils/run_server.py b/catalyst/utils/run_server.py
index 400bab73..571e7788 100644
--- a/catalyst/utils/run_server.py
+++ b/catalyst/utils/run_server.py
@@ -48,7 +48,7 @@ def run_server(
         ):
 
     # address to send
-    url = 'http://127.0.0.1:5000/api/catalyst/serve'
+    url = 'http://sandbox.enigma.co/api/catalyst/serve'
 
     # argument preparation - encode the file for transfer
     if algotext: