diff --git a/version.h b/version.h
index 8d83122f66..8e775be4cf 100644
--- a/version.h
+++ b/version.h
@@ -1,11 +1,11 @@
 #define RUBY_VERSION "2.0.0"
-#define RUBY_RELEASE_DATE "2012-12-31"
+#define RUBY_RELEASE_DATE "2013-01-01"
 #define RUBY_PATCHLEVEL -1
 #define RUBY_BRANCH_NAME "trunk"
 
-#define RUBY_RELEASE_YEAR 2012
-#define RUBY_RELEASE_MONTH 12
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_YEAR 2013
+#define RUBY_RELEASE_MONTH 1
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"