diff --git a/doc/Doxyfile b/doc/Doxyfile
index c1c5bc8..256f7df 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -31,7 +31,7 @@ PROJECT_NAME           = GammaLib
 # This could be handy for archiving the generated documentation or 
 # if some version control system is used.
 
-PROJECT_NUMBER         = 00-04-11
+PROJECT_NUMBER         = 00-05-00
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
 # base path where the generated documentation will be put.