diff --git a/Packages/Convex_hull_3/changes.txt b/Packages/Convex_hull_3/changes.txt
index 69d669d9ce1..22c4599ccb8 100644
--- a/Packages/Convex_hull_3/changes.txt
+++ b/Packages/Convex_hull_3/changes.txt
@@ -1,4 +1,4 @@
-2.16    (?? June 2001)
+2.16    (11 July 2001)
 - fixed degenerate quickhull test so it generates precise numbers instead
   of doubles
 - added some missing typenames