diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 092332f..0751a24 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -253,7 +253,7 @@ jobs:
       - name: Set up Python 3.9
         uses: actions/setup-python@v2
         with:
-          python-version: 3.9.16
+          python-version: 3.9.13
 
       - name: Build
         shell: bash