diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
new file mode 100644
index 000000000..3794c0874
--- /dev/null
+++ b/.github/workflows/tests.yaml
@@ -0,0 +1,34 @@
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+name: Nightly tests
+
+on:
+  schedule:
+    - cron: "0 11 * * 1-5"  # Mon-Fri at 11:00 AM UTC
+
+jobs:
+  pytest:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ts-graphviz/setup-graphviz@v1
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r dev_tools/requirements/envs/pytest.env.txt
+          pip install --no-deps -e .
+      - run: |
+          check/pytest