diff --git a/docs/source/contributing.rst b/docs/source/contributing.rst
index 3312a3e..725b131 100644
--- a/docs/source/contributing.rst
+++ b/docs/source/contributing.rst
@@ -97,6 +97,12 @@ In the project's home directory run:
 
     pip install -e .
 
+To install with optional development dependencies run:
+
+.. code-block:: sh
+
+    pip install -e '.[dev]'
+
 To test that the installation was successful run:
 
 .. code-block:: sh
diff --git a/pyproject.toml b/pyproject.toml
index 415c3cb..81df712 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,6 +36,7 @@ netcdf3 = ["scipy"]
 dev = [
     "cftime",
     "dask",
+    "fastparquet",
     "h5netcdf",
     "h5py",
     "jinja2",