diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c392b10..8737593 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,5 +12,6 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"
-      - run: python -m pip install --upgrade pip pytest
+      - run: python -m pip install --upgrade pip
+      - run: python -m pip install "./kll_sketch[test]"
       - run: python -m pytest -q