diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 473f74c..26d4e4e 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -14,6 +14,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
       - uses: actions/cache@v2
         with:
           path: ~/.cache/pip