diff --git a/update.sh b/update.sh
new file mode 100755
index 0000000..f6941ba
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+CADDYFILE_DEST=/etc/caddy/Caddyfile
+
+sudo cp "${CADDYFILE_DEST}" "${CADDYFILE_DEST}.old"
+sudo cp Caddyfile /etc/caddy/Caddyfile