diff --git a/collects/repos-time-stamp/stamp.ss b/collects/repos-time-stamp/stamp.ss
index b8e31b17c5..90346dea40 100644
--- a/collects/repos-time-stamp/stamp.ss
+++ b/collects/repos-time-stamp/stamp.ss
@@ -1 +1 @@
-(module stamp mzscheme (provide stamp) (define stamp "30aug2005"))
+(module stamp mzscheme (provide stamp) (define stamp "31aug2005"))