diff --git a/setup.py b/setup.py
index 0c5ea83f..5b04c3ce 100755
--- a/setup.py
+++ b/setup.py
@@ -48,9 +48,32 @@ setup(name='jedi',
               'mypy==0.782',
           ],
           'docs': [
-              'sphinx<2',
-              'jinja2<3',
-              'docutils<0.18',
+              # Just pin all of these.
+              'Jinja2==2.11.3',
+              'MarkupSafe==1.1.1',
+              'Pygments==2.8.1',
+              'alabaster==0.7.12',
+              'babel==2.9.1',
+              'chardet==4.0.0',
+              'commonmark==0.8.1',
+              'docutils==0.17.1',
+              'future==0.18.2',
+              'idna==2.10',
+              'imagesize==1.2.0',
+              'mock==1.0.1',
+              'packaging==20.9',
+              'pyparsing==2.4.7',
+              'pytz==2021.1',
+              'readthedocs-sphinx-ext==2.1.4',
+              'recommonmark==0.5.0',
+              'requests==2.25.1',
+              'six==1.15.0',
+              'snowballstemmer==2.1.0',
+              'sphinx==1.8.5',
+              'sphinx-rtd-theme==0.4.3',
+              'sphinxcontrib-serializinghtml==1.1.4',
+              'sphinxcontrib-websupport==1.2.4',
+              'urllib3==1.26.4',
           ],
       },
       package_data={'jedi': ['*.pyi', 'third_party/typeshed/LICENSE',