diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 32f41d8..e0f00d2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ matrix['python-version'] }}
+          python-version: 3.12.7
 
       - name: Install dependencies
         run: |