diff --git a/roles/educontainer/tasks/setup.yml b/roles/educontainer/tasks/setup.yml
index b3bef38..42fdb55 100644
--- a/roles/educontainer/tasks/setup.yml
+++ b/roles/educontainer/tasks/setup.yml
@@ -36,7 +36,7 @@
   command:
     cmd: >
       chroot . sh -c '/usr/bin/apt-get update &&
-      /usr/bin/apt-get full-upgrade --yes'
+      DEBIAN_FRONTEND=noninteractive /usr/bin/apt-get full-upgrade --yes'
   args:
     chdir: /var/lib/machines/{{ contname }}00
   register: cmd_result