diff --git a/version.h b/version.h
index 6c30aa2a0e..48f3d8f093 100644
--- a/version.h
+++ b/version.h
@@ -5,8 +5,8 @@
 #define RUBY_PATCHLEVEL -1
 
 #define RUBY_RELEASE_YEAR 2020
-#define RUBY_RELEASE_MONTH 1
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_MONTH 2
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"