diff --git a/.forgejo/workflows/deploy-dgnum.yaml b/.forgejo/workflows/deploy-dgnum.yaml
index 5f85309..93af7b5 100644
--- a/.forgejo/workflows/deploy-dgnum.yaml
+++ b/.forgejo/workflows/deploy-dgnum.yaml
@@ -15,7 +15,7 @@ jobs:
           path: dgnum.eu
 
       - name: install sudo
-        run: apt-get install sudo
+        run: apt update && apt install sudo
 
       - uses: https://github.com/cachix/install-nix-action@v22
         with: