diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e46d727c1..3fbdaa45c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -19,13 +19,13 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.10"
+          python-version: "3.11.9"
 
       - name: Install Requirements
         run: |
           set -e
           pip install poetry
-          poetry install
+          poetry lock && poetry install
 
       - name: Run tests
         run: poetry run pytest tests