diff --git a/.readthedocs.yml b/.readthedocs.yml
index 52cc251d..715fd3a0 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -10,3 +10,5 @@ python:
   install:
     - method: pip
       path: .
+      extra_requirements:
+        - docs
diff --git a/pyproject.toml b/pyproject.toml
index 07d2a470..5ab1f94d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -77,6 +77,7 @@ sphinx-rtd-theme = "^0.4.3"
 [tool.poetry.extras]
 fast = ["uvloop"]
 proxy = ["aiohttp-socks"]
+docs = ['sphinx-intl', 'typing-extensions']
 
 [tool.black]
 line-length = 99