diff --git a/.gitea/workflows/test.yml b/.gitea/workflows/test.yml
index fcd9631f..eba5f896 100644
--- a/.gitea/workflows/test.yml
+++ b/.gitea/workflows/test.yml
@@ -78,7 +78,7 @@ jobs:
           apt-get install -y python3-pip
 
           python3 -m pip install --upgrade pip
-          python3 -m pip install yamllint
+          python3 -m pip install yamllint tomli
 
           echo ""
           echo "✓ Python 版本: $(python3 --version)"
diff --git a/tests/test_gitea_workflow_bootstrap.py b/tests/test_gitea_workflow_bootstrap.py
index 13a91ccf..c62ec77c 100644
--- a/tests/test_gitea_workflow_bootstrap.py
+++ b/tests/test_gitea_workflow_bootstrap.py
@@ -38,6 +38,10 @@ class GiteaWorkflowBootstrapTests(unittest.TestCase):
                 )
                 self.assertIn('echo "REPO_DIR=$REPO_DIR" >>', text)
 
+    def test_test_workflow_installs_tomli_for_python_template_validation(self):
+        text = TEST_WORKFLOW.read_text(encoding="utf-8")
+        self.assertIn("python3 -m pip install yamllint tomli", text)
+
 
 if __name__ == "__main__":
     unittest.main()