1 files changed, 1 insertions, 1 deletions

diff --git a/Doxyfile b/Doxyfile
index 626368e5a..cb0bf5546 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -6,7 +6,7 @@
 
 DOXYFILE_ENCODING      = UTF-8
 PROJECT_NAME           = "mruby"
-PROJECT_NUMBER         = 2.1.2
+PROJECT_NUMBER         = 3.0.0
 
 PROJECT_BRIEF          = "mruby is the lightweight implementation of the Ruby language"