diff --git a/docs/qig/en-US/Book_Info.xml b/docs/qig/en-US/Book_Info.xml
index e356de4415a..98cbcb49327 100644
--- a/docs/qig/en-US/Book_Info.xml
+++ b/docs/qig/en-US/Book_Info.xml
@@ -27,7 +27,7 @@
     <title>Quick Install Guide</title>
     <subtitle>Prescriptive instructions for deploying Apache CloudStack</subtitle>
     <productname>Apache CloudStack</productname>
-    <productnumber>4.0.2</productnumber>
+    <productnumber>4.2.0</productnumber>
     <edition>0</edition>
     <pubsnumber>0</pubsnumber>
     <abstract>