diff --git a/VAST 4.2 Samples/Ad_Verification-test.xml b/VAST 4.2 Samples/Ad_Verification-test.xml
index f6082b3..824df5c 100644
--- a/VAST 4.2 Samples/Ad_Verification-test.xml	
+++ b/VAST 4.2 Samples/Ad_Verification-test.xml	
@@ -1,7 +1,7 @@
 <VAST version="4.2" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://www.iab.com/VAST">
   <Ad id="20001" sequence="1" >
     <InLine>
-      <AdSystem version="1.0">iabtechlab</AdSystem>
+      <AdSystem version="4.2">iabtechlab</AdSystem>
       <Error><![CDATA[https://example.com/error]]></Error>
       <Extensions>
         <Extension type="iab-Count">