diff --git a/.github/workflows/python-package.yaml b/.github/workflows/python-package.yaml
index 85759e0..a810e7f 100644
--- a/.github/workflows/python-package.yaml
+++ b/.github/workflows/python-package.yaml
@@ -33,6 +33,9 @@ jobs:
       uses: abatilo/actions-poetry@v4
       with:
         poetry-version: ${{ matrix.poetry-version }}
+    - name: Ensure lockfile is updated
+      run: |
+        poetry lock
     - name: Install python dependencies
       run: |
         poetry install