diff --git a/version.h b/version.h
index a9dd16daa4..a012436552 100644
--- a/version.h
+++ b/version.h
@@ -1,11 +1,11 @@
 #define RUBY_VERSION "2.0.0"
-#define RUBY_RELEASE_DATE "2012-08-31"
+#define RUBY_RELEASE_DATE "2012-09-01"
 #define RUBY_PATCHLEVEL -1
 #define RUBY_BRANCH_NAME "trunk"
 
 #define RUBY_RELEASE_YEAR 2012
-#define RUBY_RELEASE_MONTH 8
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_MONTH 9
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"