diff --git a/version.h b/version.h
index c2559f3124..8521fc4c67 100644
--- a/version.h
+++ b/version.h
@@ -3,8 +3,8 @@
 #define RUBY_PATCHLEVEL -1
 
 #define RUBY_RELEASE_YEAR 2016
-#define RUBY_RELEASE_MONTH 1
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_MONTH 2
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"