diff --git a/.gitea/workflows/create-presentation.yml b/.gitea/workflows/create-presentation.yml
index daaec35..640f33f 100644
--- a/.gitea/workflows/create-presentation.yml
+++ b/.gitea/workflows/create-presentation.yml
@@ -8,6 +8,9 @@ jobs:
   build:
     name: Build the debian package
     runs-on: ubuntu-latest
+    container:
+      image: quay.io/buildah/stable
+
     steps:
       - name: "Git clone"
         run: git clone ${{ gitea.server_url }}/${{ gitea.repository }}.git .
@@ -16,12 +19,6 @@ jobs:
       - name: "Submodules auschecken"
         run: git submodule update --init
       
-      - name: "Install dependencies"
-        run: sudo apt-get update && sudo apt-get install pandoc nodejs texlive-full -y
-
-      - name: "Install mermaid"
-        run: npm i -g @mermaid-js/mermaid-cli
-
       - name: "Build .deb"
         run: cd ./Defensio && ./pandoc.sh
       - name: "Create release"