diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b5dfeb2a..94babe39 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -20,27 +20,35 @@ jobs:
         arch: [x64] # x86 unsupported by MicroMamba
         os: [ubuntu-latest, windows-latest, macos-latest]
         jlversion: ['1','1.9']
+
     steps:
       - uses: actions/checkout@v4
+
       - name: Set up Julia ${{ matrix.jlversion }}
         uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.jlversion }}
           arch: ${{ matrix.arch }}
+
       - uses: julia-actions/cache@v2
+
       - name: Build package
         uses: julia-actions/julia-buildpkg@v1
+
       - name: Run tests
         uses: julia-actions/julia-runtest@v1
         env:
           JULIA_DEBUG: PythonCall
           JULIA_NUM_THREADS: '2'
+
       - name: Process coverage
         uses: julia-actions/julia-processcoverage@v1
+
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
   python:
     name: Test (${{ matrix.os }}, python ${{ matrix.pyversion }})
     runs-on: ${{ matrix.os }}
@@ -48,34 +56,44 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        pyversion: ["3.x", "3.8"]
+        pyversion: [">=3.8", "3.8"]
+
     steps:
       - uses: actions/checkout@v4
+
       - name: Set up Python ${{ matrix.pyversion }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.pyversion }}
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          python-version: ${{ matrix.pyversion }}
+  
       - name: Set up Julia
         uses: julia-actions/setup-julia@v2
         with:
           version: '1'
+
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install flake8 pytest pytest-cov nbval numpy
           cp pysrc/juliacall/juliapkg-dev.json pysrc/juliacall/juliapkg.json
-          pip install -e .
+          uv sync --dev
+
       - name: Lint with flake8
         run: |
           # stop the build if there are Python syntax errors or undefined names
-          flake8 . --count --select=E9,F63,F7,F82 --ignore=F821 --show-source --statistics
+          uv run flake8 ./pysrc ./pytest --count --select=E9,F63,F7,F82 --ignore=F821 --show-source --statistics
           # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+          uv run flake8 ./pysrc ./pytest --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+
       - name: Run tests
         run: |
-          pytest -s --nbval --cov=pysrc ./pytest/
+          uv run pytest -s --nbval --cov=pysrc ./pytest/
         env:
           PYTHON_JULIACALL_THREADS: '2'
+
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5
         env:
diff --git a/pyproject.toml b/pyproject.toml
index 34e48b5d..672643d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,8 +12,17 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
 ]
-requires-python = ">=3.8"
-dependencies = ["juliapkg ~=0.1.17"]
+requires-python = ">=3.8, <4"
+dependencies = ["juliapkg >=0.1.17, <0.2"]
+
+[dependency-groups]
+dev = [
+    "flake8>=5.0",
+    "nbval>=0.11.0",
+    "numpy>=1.24",
+    "pytest>=8.3",
+    "pytest-cov>=5.0",
+]
 
 [tool.hatch.build.targets.wheel]
 packages = ["pysrc/juliacall"]