1 files changed, 1 insertions, 1 deletions

diff --git a/version.h b/version.h
index 2db2f674f2..4867e49f3e 100644
--- a/version.h
+++ b/version.h
@@ -4,7 +4,7 @@
 
 #define RUBY_RELEASE_YEAR 2018
 #define RUBY_RELEASE_MONTH 5
-#define RUBY_RELEASE_DAY 19
+#define RUBY_RELEASE_DAY 21
 
 #include "ruby/version.h"