diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 463f8c8..5b4666f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,7 +48,7 @@ jobs:
     steps:
       - name: Install dependencies
         run: |
-          apt-get update && apt-get install --yes diffoscope-minimal python3-debian \
+          apt-get update && apt-get install --yes diffoscope-minimal python3-debian xz-utils \
             --no-install-recommends
       - uses: actions/download-artifact@v4
         with: