diff --git a/docs/requirements.txt b/docs/requirements.txt
index 5fce6bc..24d58e0 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx==4.0.2
+sphinx==4.2.0
 sphinx-autobuild==2021.3.14
 sphinx-autodoc-typehints==1.12.0
 sphinx-copybutton==0.3.1