diff --git a/version.h b/version.h
index 4e573bac1e..05f5f727f1 100644
--- a/version.h
+++ b/version.h
@@ -1,10 +1,10 @@
 #define RUBY_VERSION "1.9.3"
 #define RUBY_PATCHLEVEL -1
 
-#define RUBY_RELEASE_DATE "2011-09-12"
+#define RUBY_RELEASE_DATE "2011-09-13"
 #define RUBY_RELEASE_YEAR 2011
 #define RUBY_RELEASE_MONTH 9
-#define RUBY_RELEASE_DAY 12
+#define RUBY_RELEASE_DAY 13
 
 #include "ruby/version.h"