diff --git a/bundles/apt/files/do-unattended-upgrades b/bundles/apt/files/do-unattended-upgrades
index 82936e2..be56863 100644
--- a/bundles/apt/files/do-unattended-upgrades
+++ b/bundles/apt/files/do-unattended-upgrades
@@ -4,7 +4,7 @@ set -xeuo pipefail
 
 apt-get update
 
-DEBIAN_FRONTEND=noninteractive apt-get -y -q -o Dpkg::Options::=--force-confold -o Dpkg::Options::=--force-confdef dist-upgrade
+DEBIAN_FRONTEND=noninteractive apt-get -y -q -o Dpkg::Options::=--force-confold dist-upgrade
 
 DEBIAN_FRONTEND=noninteractive apt-get -y -q autoclean