diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 6202bed..8cff6d4 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -9,6 +9,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: 3.9
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
       - name: Publish
         env:
           GROUFI_PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}