diff --git a/Doc/docs-requirements.txt b/Doc/docs-requirements.txt
index c62c8d1e0..9b3f07e6d 100644
--- a/Doc/docs-requirements.txt
+++ b/Doc/docs-requirements.txt
@@ -1,3 +1,3 @@
-sphinx==3.3.1
+sphinx==4.2.0
 sphinx_rtd_theme==0.5.0
 reportlab==3.5.55