diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1f8a58fb..e7a97fde 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -26,11 +26,11 @@ jobs:
         key: ${{ runner.os }}-pip-${{ hashFiles('**/setup.py') }}
         restore-keys: |
           ${{ runner.os }}-pip-
-    # Set up Python 3.10
-    - name: Set up Python 3.10
+    # Set up Python 3.9
+    - name: Set up Python 3.9
       uses: actions/setup-python@v2
       with:
-        python-version: "3.10"
+        python-version: "3.9"
     # Install EMMAA/test dependencies
     - name: Install dependencies
       run: |