diff --git a/Singleton/3/scripts/main.js b/Singleton/3/scripts/main.js
index 1b28339..a42f4b4 100644
--- a/Singleton/3/scripts/main.js
+++ b/Singleton/3/scripts/main.js
@@ -1,6 +1,6 @@
 import Singleton from './Singleton';
 
-var oSingle1 = Singleton;
-var oSingle2 = Singleton;
+let oSingle1 = Singleton;
+let oSingle2 = Singleton;
 console.log(Singleton.toString());
 console.log("oSingle1 is the same instance that oSingle2? " + (oSingle1 === oSingle2));