diff --git a/version.h b/version.h
index 6f6dc1dffa..cdaaf94129 100644
--- a/version.h
+++ b/version.h
@@ -1,11 +1,11 @@
 #define RUBY_VERSION "1.8.1"
-#define RUBY_RELEASE_DATE "2003-11-30"
+#define RUBY_RELEASE_DATE "2003-12-01"
 #define RUBY_VERSION_CODE 181
-#define RUBY_RELEASE_CODE 20031130
+#define RUBY_RELEASE_CODE 20031201
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8
 #define RUBY_VERSION_TEENY 1
 #define RUBY_RELEASE_YEAR 2003
-#define RUBY_RELEASE_MONTH 11
-#define RUBY_RELEASE_DAY 30
+#define RUBY_RELEASE_MONTH 12
+#define RUBY_RELEASE_DAY 1