diff --git a/docs/conf.py b/docs/conf.py
index b70918f..bd64578 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -35,6 +35,7 @@
     'sphinx.ext.intersphinx',
     'sphinx.ext.viewcode',
     'sphinx.ext.napoleon',
+    'sphinx_docstring_typing'
 ]
 
 # Add any paths that contain templates here, relative to this directory.
diff --git a/docs/requirements-docs.txt b/docs/requirements-docs.txt
new file mode 100644
index 0000000..5922c57
--- /dev/null
+++ b/docs/requirements-docs.txt
@@ -0,0 +1 @@
+sphinx-docstring-typing
diff --git a/tox.ini b/tox.ini
index ffaef94..ce942f1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,6 +35,7 @@
 deps =
   {[testenv]deps}
   sphinx
+  -r{toxinidir}/docs/requirements-docs.txt
 commands = make -C docs html
 
 [testenv:lint]