diff --git a/ci/drone.yml b/ci/drone.yml
index d699291..487b0f5 100644
--- a/ci/drone.yml
+++ b/ci/drone.yml
@@ -14,6 +14,7 @@ steps:
 - name: Linux test
   image: ad5001/ubuntu-pyside2-xvfb:hirsute-5.15.2
   commands:
+  - apt update
   - apt install -y texlive-latex-base dvipng
   - xvfb-run python3 run.py --test-build --no-check-for-updates
   - xvfb-run python3 run.py --test-build --no-check-for-updates ./ci/test1.lpf