diff --git a/requirements_doc.txt b/requirements_doc.txt
index 8eb1f07b3..2be6dba4d 100644
--- a/requirements_doc.txt
+++ b/requirements_doc.txt
@@ -1,4 +1,4 @@
-sphinx>=2.0
+sphinx>=5.0
 myst-parser
 https://github.com/analogdevicesinc/doctools/releases/download/latest/adi-doctools.tar.gz
 sphinxcontrib-mermaid