diff --git a/coreos/post-install.sh b/coreos/post-install.sh
index 48c3969..f63f8c9 100755
--- a/coreos/post-install.sh
+++ b/coreos/post-install.sh
@@ -2,6 +2,9 @@
 
 set -ouex pipefail
 
+# Ensure automatic updates are enabled by default
+systemctl enable rpm-ostreed-automatic.timer
+
 ## CONDITIONAL: post-install ZFS
 if [[ "-zfs" == "${ZFS_TAG}" ]]; then
     echo "no post-install tasks for ZFS"
@@ -12,4 +15,4 @@ if [[ "-nvidia" == "${NVIDIA_TAG}" ]]; then
     sed -i 's@enabled=1@enabled=0@g' /etc/yum.repos.d/nvidia-container-toolkit.repo
 
     semodule --verbose --install /usr/share/selinux/packages/nvidia-container.pp
-fi
\ No newline at end of file
+fi