diff --git a/ChangeLog b/ChangeLog
index f8cee58788..5b2b810a49 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Jul 10 23:30:52 2011  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* version.h (RUBY_VERSION): ruby_1_9_3 branch was forked.
+
 Sun Jul 10 22:50:00 2011  Kenta Murata  <mrkn@mrkn.jp>
 
 	* ext/bigdecimal/bigdecimal.c (rmpd_power_by_big_decimal): fix
diff --git a/version.h b/version.h
index 1bfae515ad..8f087a1100 100644
--- a/version.h
+++ b/version.h
@@ -1,4 +1,4 @@
-#define RUBY_VERSION "1.9.3"
+#define RUBY_VERSION "1.9.4"
 #define RUBY_RELEASE_DATE "2011-07-10"
 #define RUBY_PATCHLEVEL -1
 #define RUBY_BRANCH_NAME "trunk"