diff --git a/requirements.txt b/requirements.txt
index e2bf9c87..a1e7cd17 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,5 +10,5 @@ gunicorn==20.0.4
 pycodestyle==2.6.0
 pydocstyle==5.1.1
 requests==2.24.0
-Sphinx==3.2.1
+Sphinx==3.3.0
 Werkzeug==1.0.1