diff --git a/guides/introduction/installation.md b/guides/introduction/installation.md
index 049fcafe..93537e35 100644
--- a/guides/introduction/installation.md
+++ b/guides/introduction/installation.md
@@ -92,7 +92,7 @@ First, install a few packages.
 ### Ubuntu and Debian
 
 ```bash
-sudo apt install build-essential automake autoconf git squashfs-tools pkg-config curl libmnl-dev libnl-genl-3-dev libssl-dev libncurses5-dev help2man libconfuse-dev libarchive-dev file unzip libgnutls28-dev
+sudo apt install build-essential automake autoconf git squashfs-tools pkg-config curl libmnl-dev libnl-genl-3-dev libssl-dev libncurses5-dev help2man libconfuse-dev libarchive-dev file unzip libgnutls28-dev libcrypt-dev
 ```
 
 Then install [fwup](https://github.com/fwup-home/fwup) using `asdf` or `mise` or