diff --git a/requirements/local.txt b/requirements/local.txt
index 19ef1871..ce7510c4 100644
--- a/requirements/local.txt
+++ b/requirements/local.txt
@@ -2,7 +2,7 @@
 
 Werkzeug==0.16.0  # https://github.com/pallets/werkzeug
 ipdb==0.12.2  # https://github.com/gotcha/ipdb
-Sphinx==2.2.0  # https://github.com/sphinx-doc/sphinx
+Sphinx==4.0.0  # https://github.com/sphinx-doc/sphinx
 psycopg2-binary==2.8.5  # https://github.com/psycopg/psycopg2
 
 # Testing