diff --git a/version.h b/version.h
index eb721734cf..0f58115ec2 100644
--- a/version.h
+++ b/version.h
@@ -1,11 +1,11 @@
 #define RUBY_VERSION "2.1.0"
-#define RUBY_RELEASE_DATE "2013-12-04"
+#define RUBY_RELEASE_DATE "2013-12-05"
 #define RUBY_PATCHLEVEL -1
 #define RUBY_BRANCH_NAME "trunk"
 
 #define RUBY_RELEASE_YEAR 2013
 #define RUBY_RELEASE_MONTH 12
-#define RUBY_RELEASE_DAY 4
+#define RUBY_RELEASE_DAY 5
 
 #include "ruby/version.h"