diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d9b5a00d..18af0b8b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,6 +18,10 @@ jobs:
       uses: actions/checkout@v2
       with:
         path: PyAutoArray
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
     - uses: actions/cache@v2
       id: cache-pip
       with: