diff --git a/version.h b/version.h
index 1109711c7c..ce5396c495 100644
--- a/version.h
+++ b/version.h
@@ -1,4 +1,4 @@
 #define RUBY_VERSION "1.5.5"
-#define RUBY_RELEASE_DATE "2000-07-29"
+#define RUBY_RELEASE_DATE "2000-07-31"
 #define RUBY_VERSION_CODE 155
-#define RUBY_RELEASE_CODE 20000729
+#define RUBY_RELEASE_CODE 20000731