diff --git a/.gitea/workflows/generate-iso.yaml b/.gitea/workflows/generate-iso.yaml
index 75de639..a7a8e9b 100644
--- a/.gitea/workflows/generate-iso.yaml
+++ b/.gitea/workflows/generate-iso.yaml
@@ -34,6 +34,17 @@ jobs:
       options: --user root
 
     steps:
+      - name: Enable Bookworm Backports.
+        run: |
+          echo 'deb https://deb.debian.org/debian bookworm-backports main' \
+            >| /etc/apt/sources.list.d/bookworm-backports.list
+          apt-get update
+
+      - name: Install GnuPG 2.3 from Backports.
+        run: |
+          DEBIAN_FRONTEND=noninteractive apt-get -t bookworm-backports install -y gnupg
+          gpg --version
+
       - name: Installing Debian Live-Build and Tools.
         run: |
           apt-get update
@@ -46,7 +57,6 @@ jobs:
             efibootmgr \
             git \
             live-build \
-            gnupg2 \
             parted \
             ssh \
             ssl-cert \