diff --git a/version.h b/version.h
index d268146e51..d0e742b6e5 100644
--- a/version.h
+++ b/version.h
@@ -2,11 +2,11 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 1
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 127
+#define RUBY_PATCHLEVEL 128
 
 #define RUBY_RELEASE_YEAR 2020
 #define RUBY_RELEASE_MONTH 9
-#define RUBY_RELEASE_DAY 17
+#define RUBY_RELEASE_DAY 20
 
 #include "ruby/version.h"