diff --git a/porting/first-steps.rst b/porting/first-steps.rst
index 88cb039..e13b699 100644
--- a/porting/first-steps.rst
+++ b/porting/first-steps.rst
@@ -49,7 +49,7 @@ Set up your build device
 
 Now you will need to install packages on the computer you wish to build Halium with. Make sure to have Python 3.6 or higher installed.
 
-Debian (Stretch or newer) / Ubuntu (16.04 or 18.04)
+Debian (Buster or Bullseye) / Ubuntu (16.04 or 18.04)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 If you are on the ``amd64`` architecture (commonly referred to as 64 bit), enable the usage of the ``i386`` architecture::
@@ -69,6 +69,26 @@ Install the required dependencies::
       python-markdown libxml2-utils xsltproc zlib1g-dev:i386 schedtool \
       repo liblz4-tool bc lzop imagemagick libncurses5 rsync
 
+Debian (Bookworm or newer) 
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If you are on the ``amd64`` architecture (commonly referred to as 64 bit), enable the usage of the ``i386`` architecture::
+
+    sudo dpkg --add-architecture i386
+
+Update your package lists to take advantage of the new architecture::
+
+    sudo apt update
+
+Install the required dependencies::
+
+    sudo apt install git gnupg flex bison gperf build-essential \
+      zip bzr curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
+      libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \
+      libgl1-mesa-dev g++-multilib mingw-w64-i686-dev tofrodos \
+      python3-markdown libxml2-utils xsltproc zlib1g-dev:i386 schedtool \
+      repo liblz4-tool bc lzop imagemagick libncurses5 rsync
+
 Ubuntu (20.04 or newer)
 ^^^^^^^^^^^^^^^^^^^^^^^