diff --git a/build/script/win_docs.bat b/build/script/win_docs.bat
index cb39935498..a0b1a3a086 100644
--- a/build/script/win_docs.bat
+++ b/build/script/win_docs.bat
@@ -1,5 +1,5 @@
 rem Uncomment the next line to set the version; used also in wxWidgets.iss
-SET WXW_VER=2.8.8
+SET WXW_VER=2.8.9-rc1
 
 
 if (%WXW_VER%)==() SET WXW_VER=CVS