diff --git a/.github/workflows/check-book.yml b/.github/workflows/check-book.yml
index d11925c..c8347cd 100644
--- a/.github/workflows/check-book.yml
+++ b/.github/workflows/check-book.yml
@@ -13,7 +13,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v1
       with:
-        python-version: 3.10.19
+        python-version: 3.10.20
 
     - name: Install dependencies
       run: |