diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 007a04b..fc47b63 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -9,16 +9,26 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
       - name: Install dependencies
         shell: bash
         run: |
-          python -m pip install --upgrade pip
-          pip install build setuptools twine wheel
-      - name: Build and publish
+          pip install --upgrade pip build
+
+      - name: Build package
+        shell: bash
+        run: |
+          python -m build --sdist --wheel
+
+      - name: Publish
         shell: bash
         env:
           TWINE_USERNAME: __token__
           TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
         run: |
-          python -m build --sdist --wheel
           twine upload dist/*
diff --git a/.github/workflows/pytests.yml b/.github/workflows/pytests.yml
deleted file mode 100644
index 69289f7..0000000
--- a/.github/workflows/pytests.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-name: Pytest
-
-on:
-  push:
-    branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
-
-permissions:
-  contents: read
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Python 3.10
-      uses: actions/setup-python@v3
-      with:
-        python-version: "3.10"
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install pytest
-        pip install .
-    - name: Test with pytest
-      run: |
-        pytest
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..9db3e69
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,58 @@
+name: Tests
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  pytest:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v3
+      with:
+        python-version: "3.10"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest
+        pip install .
+    - name: Test with pytest
+      run: |
+        pytest
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
+      - name: Install dependencies
+        shell: bash
+        run: |
+          pip install --upgrade pip build
+
+      - name: Build package
+        shell: bash
+        run: |
+          python -m build --sdist --wheel
+
+      - name: Install tarball
+        shell: bash
+        run: |
+          pip install dist/*.gz
+
+      - name: Test installation
+        shell: bash
+        run: |
+          mlky --version
diff --git a/mlky/__init__.py b/mlky/__init__.py
index bc8165b..e0fa4de 100644
--- a/mlky/__init__.py
+++ b/mlky/__init__.py
@@ -2,7 +2,7 @@
 """
 import importlib.metadata
 
-__version__ = importlib.metadata.version("mlky")
+__version__ = "4.2.5"
 
 # Instantiate before the CLI
 from .configs import *
diff --git a/pyproject.toml b/pyproject.toml
index 49c4fe8..2fd7760 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,16 +1,6 @@
-[build-system]
-requires = ["setuptools"]
-build-backend = "setuptools.build_meta"
-
-[tool.setuptools]
-license-files = []
-
-[tool.setuptools.packages.find]
-include = ["mlky"]
-
 [project]
 name = "mlky"
-version = "4.2.4"
+dynamic = ["version"]
 description = "Flexible Configurations: Because it's the only Way"
 readme = "README.md"
 requires-python = ">=3.9"
@@ -48,3 +38,10 @@ documentation = "https://jammont.github.io/mlky/"
 
 [project.scripts]
 mlky = "mlky:cli.cli.commands"
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.version]
+path = "mlky/__init__.py"