diff --git a/doc/user_manual.md b/doc/user_manual.md
index 09ac080b..297f4137 100644
--- a/doc/user_manual.md
+++ b/doc/user_manual.md
@@ -78,7 +78,6 @@ apt install \
   acl \
   binfmt-support \
   bubblewrap \
-  bzip2 \
   mmdebstrap \
   arch-test \
   apt-utils \
@@ -92,12 +91,10 @@ apt install \
   sudo \
   uidmap \
   unzip \
-  xz-utils \
   git-buildpackage \
   pristine-tar \
   sbuild \
   schroot \
-  zstd
 ```
 
 If your host is bullseye or bookworm, also install the following package.