diff --git a/version.h b/version.h
index 8b9bc190dd..dabe095bab 100644
--- a/version.h
+++ b/version.h
@@ -1,4 +1,4 @@
 #define RUBY_VERSION "1.7.1"
-#define RUBY_RELEASE_DATE "2001-09-19"
+#define RUBY_RELEASE_DATE "2001-09-20"
 #define RUBY_VERSION_CODE 171
-#define RUBY_RELEASE_CODE 20010919
+#define RUBY_RELEASE_CODE 20010920