diff --git a/.github/workflows/PackageTest.yml b/.github/workflows/PackageTest.yml
index d6d1994..8cefaa3 100644
--- a/.github/workflows/PackageTest.yml
+++ b/.github/workflows/PackageTest.yml
@@ -18,6 +18,11 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
       - name: Install poetry
         run: |
           pip install poetry