diff --git a/version.h b/version.h
index b726f776e5..e9f09a6469 100644
--- a/version.h
+++ b/version.h
@@ -4,9 +4,9 @@
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
 #define RUBY_PATCHLEVEL -1
 
-#define RUBY_RELEASE_YEAR 2018
-#define RUBY_RELEASE_MONTH 12
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_YEAR 2019
+#define RUBY_RELEASE_MONTH 1
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"