diff --git a/install.md b/install.md
index dfb84d1..7428e38 100644
--- a/install.md
+++ b/install.md
@@ -39,6 +39,7 @@ The following dependencies are required to build it:
 - go-md2man
 - meson >= 0.58.0
 - ninja
+- shadow >= 4.9
 - systemd
 
 The following dependencies enable various optional features:
@@ -86,4 +87,4 @@ The following steps can be followed in order to create a custom image:
 
         ```
         $ toolbox create -i my-custom-image
-        ```
\ No newline at end of file
+        ```