diff --git a/config/hooks/normal/0900-clear-apt-cache.hook.chroot b/config/hooks/normal/0900-clear-apt-cache.hook.chroot
new file mode 100755
index 0000000..449b6c0
--- /dev/null
+++ b/config/hooks/normal/0900-clear-apt-cache.hook.chroot
@@ -0,0 +1,6 @@
+#!/bin/sh
+# clear APT package download cache to reduce the image size from ~100MB
+rm -vr /var/lib/apt/lists/
+
+# clear APT package list cache to reduce the image size from ~180MB
+rm -vr /var/cache/apt/
\ No newline at end of file