diff --git a/global/post-tasks.d/099autoremove b/global/post-tasks.d/099autoremove
index 74b0aa4..c3c809c 100755
--- a/global/post-tasks.d/099autoremove
+++ b/global/post-tasks.d/099autoremove
@@ -1,4 +1,6 @@
-#!/bin/sh
+#!/bin/bash
+
+export DEBIAN_FRONTEND='noninteractive'
 
 if (( $RANDOM % 20 == 0)); then
     apt-get -qq update