diff --git a/kiosk_skeleton/build.sh b/kiosk_skeleton/build.sh
index 1d66f9c..9fb7c15 100755
--- a/kiosk_skeleton/build.sh
+++ b/kiosk_skeleton/build.sh
@@ -98,3 +98,7 @@ dpkg --list | grep "ii  chromium " >> /version-info
 echo -n "Linux kernel version: " >> /version-info
 ls /lib/modules/  | sort -r | head -n 1 >> /version-info
 echo >> /version-info
+
+# Clean up to reduce image size
+apt-get clean
+rm -rf /var/lib/apt/lists/*