diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 7140ab4..1834269 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -11,10 +11,9 @@ jobs:
   build:
     runs-on: self-hosted
     steps:
-      - name: Install build tools (apt)
+      - name: Install build tools
         run: |
-          apt-get update
-          apt-get install -y curl git nodejs npm docker.io 2>/dev/null || true
+          apk add --no-cache curl git nodejs npm docker-cli 2>/dev/null || true
 
       - name: Generate demo content + Dockerfile
         run: |