diff --git a/presentation/presentation.rst b/presentation/presentation.rst
index f914ecf..9255216 100644
--- a/presentation/presentation.rst
+++ b/presentation/presentation.rst
@@ -280,7 +280,7 @@ Playground - Server
 ===================
 
 * IP: ``10.201.77.56``
-* Port: ``1235``
+* Port: ``4321``
 
 Challenge - Server
 ==================