diff --git a/.forgejo/workflows/build-document.yml b/.forgejo/workflows/build-document.yml
index 84243fb..f0d139f 100644
--- a/.forgejo/workflows/build-document.yml
+++ b/.forgejo/workflows/build-document.yml
@@ -31,10 +31,20 @@ jobs:
       
       - name: Install Biber
         shell: bash
+        env:
+          BIBER_VERSION: "2.17"
         run: |
-          sudo apt-get update
-          sudo apt-get install -y biber
-          biber --version
+          set -euo pipefail
+
+          url="https://sourceforge.net/projects/biblatex-biber/files/biblatex-biber/${BIBER_VERSION}/binaries/Linux/biber-linux_x86_64.tar.gz/download"
+
+          curl --fail --location "$url" --output biber.tar.gz
+          tar -xzf biber.tar.gz
+
+          install -m 0755 biber "$RUNNER_TEMP/biber"
+          echo "$RUNNER_TEMP" >> "$GITHUB_PATH"
+
+    "$RUNNER_TEMP/biber" --version
 
       - name: Compile document
         shell: bash