diff --git a/version.h b/version.h
index c361122024..1e17ddec77 100644
--- a/version.h
+++ b/version.h
@@ -1,10 +1,10 @@
 #define RUBY_VERSION "2.1.1"
-#define RUBY_RELEASE_DATE "2014-01-31"
+#define RUBY_RELEASE_DATE "2014-02-01"
 #define RUBY_PATCHLEVEL 13
 
 #define RUBY_RELEASE_YEAR 2014
-#define RUBY_RELEASE_MONTH 1
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_MONTH 2
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"