diff --git a/vars/ubuntu-16.yml b/vars/ubuntu-16.yml
index 96312974a..5c1cdeb7e 100644
--- a/vars/ubuntu-16.yml
+++ b/vars/ubuntu-16.yml
@@ -25,6 +25,3 @@ sshd_service: ssh
 php_version: 7.0
 postgresql_version: 9.5
 systemd_location: /lib/systemd/system
-# Upgrade Ubuntu 16.04's Calibre 2.55.0 to very latest:
-calibre_via_debs: False
-calibre_via_python: True