diff --git a/grrlib.doxygen b/grrlib.doxygen
index 938a468..94acf17 100644
--- a/grrlib.doxygen
+++ b/grrlib.doxygen
@@ -31,7 +31,7 @@ PROJECT_NAME           = GRRLIB
 # This could be handy for archiving the generated documentation or 
 # if some version control system is used.
 
-PROJECT_NUMBER         = 4.3.0
+PROJECT_NUMBER         = 4.3.1
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
 # base path where the generated documentation will be put.