diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..9d1095b
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,33 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - run: pip install build
+      - run: python -m build
+      - uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: dist/
+
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    environment: pypi
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: dist/
+      - uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/CITATION.cff b/CITATION.cff
index 803785c..7b72963 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -4,7 +4,7 @@ title: "whitetree: exact Mahalanobis nearest-neighbour search with insert and de
 authors:
   - family-names: Choi
     given-names: Juhyuk
-version: 0.1.0
+version: 0.1.1
 date-released: 2026-09-13
 license: MIT
 repository-code: "https://github.com/whitetree-dev/whitetree"
diff --git a/pyproject.toml b/pyproject.toml
index 44f4913..10a8da6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "whitetree"
-version = "0.1.0"
+version = "0.1.1"
 description = "Exact Mahalanobis nearest neighbour search with insert and delete"
 readme = "README.md"
 license = "MIT"
diff --git a/src/whitetree/__init__.py b/src/whitetree/__init__.py
index 6e1ebf4..5faece8 100644
--- a/src/whitetree/__init__.py
+++ b/src/whitetree/__init__.py
@@ -13,4 +13,4 @@
 from .mahalanobis import MahalanobisIndex
 
 __all__ = ["MahalanobisIndex", "DynamicKDTree"]
-__version__ = "0.1.0"
+__version__ = "0.1.1"