diff --git a/packer/rootfs/etc/apt/apt.conf.d/20auto-upgrades b/packer/rootfs/etc/apt/apt.conf.d/20auto-upgrades
index ed820d9..df9d7b3 100644
--- a/packer/rootfs/etc/apt/apt.conf.d/20auto-upgrades
+++ b/packer/rootfs/etc/apt/apt.conf.d/20auto-upgrades
@@ -1,4 +1,4 @@
 APT::Periodic::Enable "1";
 APT::Periodic::Update-Package-Lists "1";
 APT::Periodic::Unattended-Upgrade "1";
-APT::Periodic::AutocleanInterval "7";
+APT::Periodic::AutocleanInterval "1";