diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 436477a..4b9c503 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -6,7 +6,8 @@ on:
 
 jobs:
   build_macos:
-    runs-on-labels: macos
+    runs-on: sequoia
+    container: python:3.31-alpine
 
     steps:
       - uses: actions/checkout@v3