diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..99c3654
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,25 @@
+name: Release
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  Release:
+    name: Release
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rye
+        run: curl -sSf https://rye-up.com/get | RYE_INSTALL_OPTION="--yes" bash
+
+      - name: Build
+        run: |
+          source "$HOME/.rye/env"
+          rye build
+
+      - name: Publish package distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/pyproject.toml b/pyproject.toml
index f15213e..d6f82c2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "earcut-py"
-version = "0.3.0"
+version = "0.3.1"
 description = "A pure Python port of the Earcut polygon triangulation library."
 authors = [
     { name = "MIERUNE Inc.", email = "info@mierune.co.jp" },