diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index d061674..b9c9a35 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -15,16 +15,17 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python 3.8
-      uses: actions/setup-python@v2
+    - uses: actions/checkout@v7
+    - name: Set up Python 3.14
+      uses: actions/setup-python@v7
       with:
-        python-version: 3.8
+        python-version: 3.14
+        cache: 'pip'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        python -m pip install pytest
+        python -m pip install .
     - name: Test with pytest
       run: |
-        pytest
+        python -m pytest
diff --git a/pyproject.toml b/pyproject.toml
index e947d6c..24af4e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,6 +20,9 @@ dependencies = [
     "xarray>=2026.4.0",
 ]
 
+[tool.setuptools]
+packages = []
+
 [tool.pytest]
 testpaths = ["test"]