diff --git a/collects/repos-time-stamp/stamp.ss b/collects/repos-time-stamp/stamp.ss
index c4752c3f98..079ba41b53 100644
--- a/collects/repos-time-stamp/stamp.ss
+++ b/collects/repos-time-stamp/stamp.ss
@@ -1 +1 @@
-(module stamp mzscheme (provide stamp) (define stamp "3sep2007"))
+(module stamp mzscheme (provide stamp) (define stamp "4sep2007"))