diff --git a/version.h b/version.h
index ffb93d41c9..c5f6d74784 100644
--- a/version.h
+++ b/version.h
@@ -1,11 +1,11 @@
 #define RUBY_VERSION "2.0.0"
-#define RUBY_RELEASE_DATE "2013-01-31"
+#define RUBY_RELEASE_DATE "2013-02-01"
 #define RUBY_PATCHLEVEL -1
 #define RUBY_BRANCH_NAME "trunk"
 
 #define RUBY_RELEASE_YEAR 2013
-#define RUBY_RELEASE_MONTH 1
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_MONTH 2
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"