--- /lib/systemd/system/apt-daily.timer	2017-01-17 17:36:38.000000000 +0100
+++ /etc/systemd/system/apt-daily.timer	2017-02-08 22:27:32.627922630 +0100
@@ -1,5 +1,7 @@
 [Unit]
 Description=Daily apt activities
+After=default.target
+Wants=network-online.target
 
 [Timer]
 OnCalendar=*-*-* 6,18:00