diff --git a/requirements.txt b/requirements.txt
index fa57070..264e821 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ coverage==4.5.4
 flake8==3.7.8
 pip==19.3.1
 requests>=2.0.0
-Sphinx==2.2.0
+Sphinx==5.0.0
 tox==3.14.0
 twine==1.15.0
 watchdog==0.9.0