diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e090797..43c69db 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,6 +18,9 @@ jobs:
           python -m pip install --upgrade pip
           pip install --no-cache-dir -r requirements.txt
           pip install --no-cache-dir -r requirements-dev.txt
+      - name: check env
+        run : |
+          pip freeze
       - name: run black
         run: |
           black . --check --verbose || echo "return 0"
diff --git a/.github/workflows/publish_pypi.yml b/.github/workflows/publish_pypi.yml
new file mode 100644
index 0000000..fef93ef
--- /dev/null
+++ b/.github/workflows/publish_pypi.yml
@@ -0,0 +1,21 @@
+jobs:
+  pypi-publish:
+    name: Upload release to PyPI
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/tencirchem
+    permissions:
+      id-token: write
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3.8
+        cache: "pip"
+    - name: Build
+      - run: |
+          python setup.py sdist
+    - name: Publish package distributions to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1