diff --git a/Doxyfile b/Doxyfile
index 022927ff..14bd0b24 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -23,7 +23,7 @@ PROJECT_NAME           = fluxbox
 # This could be handy for archiving the generated documentation or 
 # if some version control system is used.
 
-PROJECT_NUMBER         = 0.9.8
+PROJECT_NUMBER         = 0.9.13
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
 # base path where the generated documentation will be put.