diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f10de49..e0d42ff 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v2
         with:
-          python-version: '3.8'
+          python-version: '3.7'
 
       - name: Check Python install
         run: |