diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index 132369f3ed..9c84741c6d 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -30,6 +30,7 @@ jobs:
       with:
         name: coverage-artifact-${{ matrix.python }}
         path: .coverage-${{ matrix.python }}
+        include-hidden-files: true
 
   cover:
     runs-on: ubuntu-latest
diff --git a/owlbot.py b/owlbot.py
index b29384d462..ca3c8cbe14 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -49,6 +49,7 @@
         "README.rst",
         "CONTRIBUTING.rst",
         ".github/release-trigger.yml",
+        ".github/workflows/unittest.yml",
         # BigQuery DataFrames manages its own Kokoro cluster for presubmit & continuous tests.
         ".kokoro/build.sh",
         ".kokoro/continuous/common.cfg",