diff --git a/collects/repos-time-stamp/stamp.ss b/collects/repos-time-stamp/stamp.ss
index c8d2f9cfca..a368849529 100644
--- a/collects/repos-time-stamp/stamp.ss
+++ b/collects/repos-time-stamp/stamp.ss
@@ -1 +1 @@
-(module stamp mzscheme (provide stamp) (define stamp "31aug2007"))
+(module stamp mzscheme (provide stamp) (define stamp "1sep2007"))