diff --git a/.github/workflows/mypy-check.yaml b/.github/workflows/mypy-check.yaml
index db8f80b..5166fe8 100644
--- a/.github/workflows/mypy-check.yaml
+++ b/.github/workflows/mypy-check.yaml
@@ -16,7 +16,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: '3.9'
+        python-version: '3.11'
 
     - name: Install dependencies
       run: |