diff --git a/docs/contributing.rst b/docs/contributing.rst
index 715c49830..e1decc0f2 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -26,42 +26,32 @@ Your PR should conform with the following rules:
 Installing Dependencies
 -----------------------
 
-**Sphinx-Needs** requires only
-`Poetry <https://python-poetry.org/>`__ to be installed as a system
-dependency, the rest of the dependencies are 'bootstrapped' and
-installed in an isolated environment by Poetry.
+To develop **Sphinx-Needs**  it can be installed, with development extras, into an existing Python environment using ``pip``:
 
-1. `Install Poetry <https://python-poetry.org/docs/#installation>`__
+.. code-block:: bash
 
-2. Install project dependencies
+   pip install sphinx-needs[test,benchmark,docs]
 
-   .. code-block:: bash
+or using `Poetry <https://python-poetry.org/>`__ to install the dependencies into an isolated environment:
 
-      poetry install
-
-3. `Install Pre-Commit <https://pre-commit.com/>`__
+1. `Install Poetry <https://python-poetry.org/docs/#installation>`__
 
-4. Install the Pre-Commit hooks
+2. Install project dependencies
 
    .. code-block:: bash
 
-      pre-commit install
-
-5. For running tests, install the dependencies of our official documentation:
+      poetry install --all-extras
 
-   .. code-block:: bash
+To run the formatting and linting suite, pre-commit is used:
 
-      pip install -r docs/requirements.txt
+1. `Install Pre-Commit <https://pre-commit.com/>`__
 
+2. Install the Pre-Commit hooks
 
-List make targets
------------------
-
-**Sphinx-Needs** uses ``make`` to invoke most development related actions.
+   .. code-block:: bash
 
-Use ``make list`` to get a list of available targets.
+      pre-commit install
 
-.. program-output:: make --no-print-directory --directory ../ list
 
 Build docs
 ----------
@@ -293,6 +283,14 @@ See the Poetry documentation for a list of commands.
 In order to run custom commands inside the isolated environment, they
 should be prefixed with ``poetry run`` (ie. ``poetry run <command>``).
 
+List make targets
+-----------------
+
+**Sphinx-Needs** uses ``make`` to invoke most development related actions.
+
+Use ``make list`` to get a list of available targets.
+
+.. program-output:: make --no-print-directory --directory ../ list
 
 Publishing a new release
 ------------------------
diff --git a/pyproject.toml b/pyproject.toml
index 2ac7d4700..e1a138ca8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ packages = [
     {include = "sphinx_needs"}
 ]
 
-# [package.dependencies]
+# [project.dependencies]
 [tool.poetry.dependencies]
 python = ">=3.8,<4"
 sphinx = ">=5.0,<8"
@@ -40,7 +40,7 @@ requests = "^2.25.1"  # external_links
 jsonschema = ">=3.2.0"  # needsimport schema validation
 sphinx-data-viewer = "^0.1.1"  # needservice debug output
 
-# [package.extras.test]
+# [project.optional-dependencies.test]
 pytest = { version = "^7", optional = true }
 lxml = { version = "^4.6.5", optional = true }
 requests-mock = { version = ">=1.9.3", optional = true }
@@ -49,14 +49,14 @@ sphinxcontrib-plantuml = { version = "^0", optional = true }
 syrupy = { version = ">=3,<5", optional = true }
 pytest-xprocess = { version = "^0.22.2", optional = true }
 
-# [package.extras.test-parallel]
+# [project.optional-dependencies.test-parallel]
 pytest-xdist = { version = "*", optional = true }
 
-# [package.extras.benchmark]
+# [project.optional-dependencies.benchmark]
 pytest-benchmark = { version = "^4.0.0", optional = true }
 memray = { version = "^1.3.1", optional = true }
 
-# [package.extras.docs]
+# [project.optional-dependencies.docs]
 sphinx-copybutton = { version="^0.5", optional = true }
 sphinxcontrib-programoutput = { version="^0.17", optional = true }
 sphinx-design = { version="^0.5", optional = true }