diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index b5622b0..0125edc 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -27,13 +27,10 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install flake8 pytest nbval django codecov pytest-cov
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        pip install -e '.[tests]'
     - name: Lint with flake8
       run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=88 --statistics
+        flake8 .
     - name: Test with pytest
       run: |
         pytest --nbval --sanitize-with doc/pytest-sanitize.ini --cov=thunor
diff --git a/.readthedocs.yml b/.readthedocs.yml
index 888005d..6684e9a 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -26,4 +26,7 @@ sphinx:
 # Optionally declare the Python requirements required to build your docs
 python:
    install:
-   - requirements: doc/requirements.txt
+   - method: pip
+     path: .
+     extra_requirements:
+       - docs
diff --git a/doc/requirements.txt b/doc/requirements.txt
deleted file mode 100644
index eee5547..0000000
--- a/doc/requirements.txt
+++ /dev/null
@@ -1,10 +0,0 @@
--r ../requirements.txt
-MarkupSafe<2.2
-Sphinx==7.4.7
-jinja2==3.1.4
-jupyter-client==8.6.2
-mock==5.1.0
-nbformat==5.10.4
-nbsphinx==0.9.4
-notebook==7.2.1
-sphinx-rtd-theme==2.0.0
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 2d0e64d..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-XlsxWriter==3.2.0
-ipython==8.26.0
-matplotlib==3.9.2
-numpy<3
-pandas==2.2.2
-plotly==5.23.0
-python-magic==0.4.27
-scipy==1.14.0
-seaborn==0.13.2
-tables==3.10.0
-xlrd==2.0.1
diff --git a/setup.py b/setup.py
index 1ad2e8e..569710f 100644
--- a/setup.py
+++ b/setup.py
@@ -19,9 +19,14 @@ def main():
         author_email='code@alexlubbock.com',
         url='https://www.thunor.net',
         packages=['thunor', 'thunor.converters'],
+        python_requires='>=3.10',
         install_requires=['numpy', 'scipy', 'pandas', 'plotly', 'seaborn',
                           'tables'],
-        tests_require=['pytest', 'nbval', 'django', 'nbformat'],
+        extras_require={
+            'test': ['pytest', 'nbval', 'django', 'nbformat'],
+            'docs': ['sphinx<8', 'sphinx-rtd-theme', 'mock', 'nbsphinx',
+                     'ipykernel'],
+        },
         cmdclass=versioneer.get_cmdclass(),
         zip_safe=True,
         classifiers=[