diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..c8ed0ae
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,53 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: true
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Cache pip
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/*requirements*.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Install dependencies
+      run: |
+        pip install --upgrade pip
+        pip install -r requirements-dev.txt
+
+    - name: Run tests
+      run: |
+        pytest
+
+    #  Run pre-commit only on Python 3.13 + ubuntu.
+    - name: Run pre-commit hooks
+      if: ${{ matrix.python-version == '3.13' && matrix.os == 'ubuntu-latest' }}
+      run: |
+        pre-commit run --all-files
+
+    # Run pylint only on Python 3.13 + ubuntu.
+    - name: Run pylint
+      if: ${{ matrix.python-version == '3.13' && matrix.os == 'ubuntu-latest' }}
+      run: |
+        pylint src/
diff --git a/.github/workflows/unitest.yml b/.github/workflows/unitest.yml
deleted file mode 100644
index 6759ecd..0000000
--- a/.github/workflows/unitest.yml
+++ /dev/null
@@ -1,33 +0,0 @@
-name: Unit Tests
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: ["3.10", "3.11"]
-
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install pytest pytest-asyncio
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-        pip install -e .
-
-    - name: Run tests
-      run: |
-        pytest
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..eb733ff
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,7 @@
+-r requirements.txt
+black
+djlint
+pre-commit
+pylint
+pytest
+pytest-asyncio
diff --git a/requirements.txt b/requirements.txt
index 2688a88..e147ebf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,11 +1,6 @@
-black
 click>=8.0.0
-djlint
 fastapi-analytics
 fastapi[standard]
-pre-commit
-pytest
-pytest-asyncio
 python-dotenv
 slowapi
 starlette