diff --git a/version.h b/version.h
index 951d7f798a..0f7eb4aa90 100644
--- a/version.h
+++ b/version.h
@@ -1,5 +1,5 @@
 #define RUBY_VERSION "1.9.1"
-#define RUBY_RELEASE_DATE "2009-07-15"
+#define RUBY_RELEASE_DATE "2009-07-16"
 #define RUBY_PATCHLEVEL 241
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 9