diff --git a/doc_requirements.txt b/doc_requirements.txt
index 97cba369d207..3403668549b5 100644
--- a/doc_requirements.txt
+++ b/doc_requirements.txt
@@ -1,4 +1,4 @@
-sphinx==3.5.4
+sphinx==4.0.1
 numpydoc==1.1.0
 ipython
 scipy