diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index b810295..59273a8 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -31,6 +31,7 @@ jobs:
     runs-on: docker
     strategy:
       fail-fast: true
+      max-parallel: 1
       matrix:
         runner-index: [0, 1, 2]
     steps: