diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 3b8630c..eca13a2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -49,7 +49,8 @@ jobs:
           --trusted-host pypi.anaconda.org \
           --no-deps --pre --upgrade \
           numpy \
-          pandas; \
+          pandas \
+          scipy; \
           python -m pip install \
           --no-deps --upgrade --pre --no-build-isolation \
           git+https://github.com/dask/dask \