diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index be54ba4..473497a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,30 +2,27 @@ name: CI
 on:
   pull_request:
     branches:
-    - main
+      - main
   push:
     branches:
-    - main
+      - main
   release:
-    types: [published]
+    types: [ published ]
 jobs:
   build:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.9, '3.10', '3.11', '3.12', '3.13']
+        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13' ]
     steps:
-    - name: Checkout
-      uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Set up Poetry
-      uses: abatilo/actions-poetry@v3
-    - name: Check package setup
-      run: poetry check
-    - name: Install dependencies
-      run: poetry install --with test
-    - name: Test
-      run: poetry run pytest --doctest-modules
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install uv and set the python version
+        uses: astral-sh/setup-uv@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          enable-cache: true
+      - name: Install the project
+        run: uv sync
+      - name: Test
+        run: uv run pytest --doctest-modules
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 4d3d8a4..7b77e3f 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -1,20 +1,17 @@
 name: Publish
 on:
   release:
-    types: [created]
+    types: [ created ]
 jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: 3.x
-    - name: Set up Poetry
-      uses: abatilo/actions-poetry@v3
-    - name: Build and publish
-      env:
-        POETRY_HTTP_BASIC_PYPI_USERNAME: ${{ secrets.PYPI_USERNAME }}
-        POETRY_HTTP_BASIC_PYPI_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
-      run: poetry publish --build
+      - uses: actions/checkout@v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+      - name: Set up Python
+        run: uv python install
+      - name: Build
+        run: uv build
+      - name: Publish
+        run: uv publish
diff --git a/.gitignore b/.gitignore
index 831897e..ab325c0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,6 @@
-build
 dist
 
 # codespaces:
 pythonenv3.9
 
-poetry.lock
+uv.lock
diff --git a/pyproject.toml b/pyproject.toml
index cb25241..66b71f2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,15 +1,19 @@
-[tool.poetry]
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
 name = "krippendorff"
-version = "0.8.1-dev"
+version = "0.8.1.dev0"
 description = "Fast computation of the Krippendorff's alpha measure."
-authors = ["Santiago Castro <sacastro@fing.edu.uy>"]
+authors = [
+    { name = "Santiago Castro", email = "sacastro@fing.edu.uy" },
+]
 license = "GPL-3.0-or-later"
+license-files = ["LICENSE.txt"]
 
 readme = "README.md"
 
-homepage = "https://github.com/pln-fing-udelar/fast-krippendorff"
-repository = "https://github.com/pln-fing-udelar/fast-krippendorff"
-
 keywords = ["Krippendorff", "alpha", "agreement", "reliability", "coding", "coders", "units", "values"]
 classifiers = [
     "Development Status :: 4 - Beta",
@@ -27,16 +31,17 @@ classifiers = [
     "Topic :: Scientific/Engineering :: Artificial Intelligence",
 ]
 
-[tool.poetry.dependencies]
-python = "^3.9"
-numpy = ">=1.21"  # For NumPy Typing.
-
-[tool.poetry.group.test]
-optional = true
+requires-python = ">=3.9"
+dependencies = [
+    "numpy>=1.21", # For NumPy Typing.
+]
 
-[tool.poetry.group.test.dependencies]
-pytest = ">=7,<9"
+[dependency-groups]
+dev = ["pytest>=7,<9"]
 
-[build-system]
-requires = ["poetry_core"]
-build-backend = "poetry.core.masonry.api"
+[project.urls]
+Homepage = "https://github.com/pln-fing-udelar/fast-krippendorff"
+Documentation = "https://github.com/pln-fing-udelar/fast-krippendorff"
+Repository = "https://github.com/pln-fing-udelar/fast-krippendorff"
+"Bug Tracker" = "https://github.com/pln-fing-udelar/fast-krippendorff/issues"
+Changelog = "https://github.com/pln-fing-udelar/fast-krippendorff/releases"