diff --git a/.github/workflows/debian-packaging.yml b/.github/workflows/debian-packaging.yml
index 58539c1..691198c 100644
--- a/.github/workflows/debian-packaging.yml
+++ b/.github/workflows/debian-packaging.yml
@@ -16,11 +16,11 @@ jobs:
     name: Build Debian packages
     strategy:
       matrix:
-        codename: ['buster', 'bullseye']
+        codename: ['bullseye', 'bookworm']
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v5
 
     - name: Build package
       run: bash .github/workflows/scripts/debian-package.sh ${{ matrix.codename }}
diff --git a/.github/workflows/scripts/debian-package.sh b/.github/workflows/scripts/debian-package.sh
index 35eaf8f..5929c8c 100755
--- a/.github/workflows/scripts/debian-package.sh
+++ b/.github/workflows/scripts/debian-package.sh
@@ -10,7 +10,7 @@ set -x
 set -e
 
 # A list of known Debian releases
-knowncodenames=("stretch" "buster" "bullseye" "stable" "testing")
+knowncodenames=("bullseye" "stable" "testing" "bookworm")
 
 # We want exactly one argument: the name of the release
 if (( $# != 1 ))