diff --git a/lib.sh b/lib.sh
index 91af5b7..c706916 100755
--- a/lib.sh
+++ b/lib.sh
@@ -103,7 +103,7 @@ function get_package_name_ver {
 ###############################################################################
 function get_normalized_package_list {
   # Update Apt cache
-  apt-get update
+  apt-get update >&2
   # Remove commas, and block scalar folded backslashes,
   # extraneous spaces at the middle, beginning and end
   # then sort.