diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d93cf98..b46d1af 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
-      #max-parallel: 1
+      max-parallel: 1
       matrix:
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest]