diff --git a/src/quickbook.cpp b/src/quickbook.cpp
index 390986e..19df096 100644
--- a/src/quickbook.cpp
+++ b/src/quickbook.cpp
@@ -40,7 +40,7 @@
 #pragma warning(disable:4355)
 #endif
 
-#define QUICKBOOK_VERSION "Quickbook Version 1.6.1 alpha 2"
+#define QUICKBOOK_VERSION "Quickbook Version 1.6.1 beta 1"
 
 namespace quickbook
 {