diff --git a/documentation/Doxyfile b/documentation/Doxyfile
index 47065b0..5ee5e4b 100644
--- a/documentation/Doxyfile
+++ b/documentation/Doxyfile
@@ -48,7 +48,7 @@ PROJECT_NAME           = "Nitro Engine"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 0.15.0
+PROJECT_NUMBER         = 0.15.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a