diff --git a/version.h b/version.h
index e0e39ce2d7..2086b58e5c 100644
--- a/version.h
+++ b/version.h
@@ -1,14 +1,14 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2005-05-31"
+#define RUBY_RELEASE_DATE "2005-06-01"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20050531
+#define RUBY_RELEASE_CODE 20050601
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 9
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_YEAR 2005
-#define RUBY_RELEASE_MONTH 5
-#define RUBY_RELEASE_DAY 31
+#define RUBY_RELEASE_MONTH 6
+#define RUBY_RELEASE_DAY 1
 
 RUBY_EXTERN const char ruby_version[];
 RUBY_EXTERN const char ruby_release_date[];