diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 3b7c9f2..d47a9a0 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -32,7 +32,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip setuptools
           python -m pip list -v
-          python -m pip install .[yaml,test]
+          python -m pip install --no-build-isolation .[yaml,test]
 
       - name: Run tests
         run: pytest -r a -v