diff --git a/.github/workflows/build_docker.yml b/.github/workflows/build_docker.yml
index 4f18c2aa9c..0f37c5e94b 100644
--- a/.github/workflows/build_docker.yml
+++ b/.github/workflows/build_docker.yml
@@ -87,7 +87,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v2
         with:
-          python-version: 3.7
+          python-version: 3.9
 
       - name: Install Python packages
         run: pip install -r Tools/setup/requirements.txt