diff --git a/.gitea/workflows/workflow.yaml b/.gitea/workflows/workflow.yaml
index a85ee52..99f9f6e 100644
--- a/.gitea/workflows/workflow.yaml
+++ b/.gitea/workflows/workflow.yaml
@@ -26,11 +26,8 @@ jobs:
         run: pnpm install --frozen-lockfile
 
       - name: Build only changed sites
-        env:
-          RANGE: ${{ github.event.pull_request.base.sha || github.event.before }}
         run: |
-          echo "Building since $RANGE …"
           pnpm turbo run build \
             --filter "apps/*" \
-            --since "$RANGE" \
-            --concurrency 1
+            --affected \
+            --concurrency=1