diff --git a/challenges/2.2.Strings/main.py b/challenges/2.2.Strings/main.py
index 490a91f..2971834 100644
--- a/challenges/2.2.Strings/main.py
+++ b/challenges/2.2.Strings/main.py
@@ -1,11 +1,11 @@
 ### Modify the code below ###
 
-myName = null
+myName = None
 
-myAge = null
+myAge = None
 
-favoriteActivity = null
+favoriteActivity = None
 
-mySentence = null 
+mySentence = None
 
 ### Modify the code above ###