diff --git a/htdp-lib/info.rkt b/htdp-lib/info.rkt
index de2af66e..ce94567f 100644
--- a/htdp-lib/info.rkt
+++ b/htdp-lib/info.rkt
@@ -7,7 +7,7 @@
     "compatibility-lib"
     "draw-lib"
     ("drracket-plugin-lib" #:version "1.1")
-    "errortrace-lib"
+    ("errortrace-lib" #:version "1.6")
     "html-lib"
     "images-gui-lib"
     "images-lib"