diff --git a/.github/workflows/test-and-run.yml b/.github/workflows/test-and-run.yml
index a9fde4c..333668e 100644
--- a/.github/workflows/test-and-run.yml
+++ b/.github/workflows/test-and-run.yml
@@ -29,6 +29,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
+        poetry env use "${{ matrix.python-version }}"
         poetry install
         python -m pip install flake8 pytest
     - name: Lint with flake8