diff --git a/version.h b/version.h
index 33d50120af..f8cd960b21 100644
--- a/version.h
+++ b/version.h
@@ -5,8 +5,8 @@
 #define RUBY_PATCHLEVEL -1
 
 #define RUBY_RELEASE_YEAR 2019
-#define RUBY_RELEASE_MONTH 1
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_MONTH 2
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"