diff --git a/pkgs/htdp-pkgs/htdp-lib/stepper/HISTORY.txt b/pkgs/htdp-pkgs/htdp-lib/stepper/HISTORY.txt
index 4161dd10ee..31ea30a70a 100644
--- a/pkgs/htdp-pkgs/htdp-lib/stepper/HISTORY.txt
+++ b/pkgs/htdp-pkgs/htdp-lib/stepper/HISTORY.txt
@@ -1,6 +1,6 @@
 Stepper
 -------
-Changes for 5.6:
+Changes for 6.0:
 
 Minor bug fixes.