diff --git a/documentation/conf.py b/documentation/conf.py
index baf550e3e3..8a9cbc972e 100644
--- a/documentation/conf.py
+++ b/documentation/conf.py
@@ -53,7 +53,7 @@ author = 'The Linux Foundation'
 # -- General configuration ---------------------------------------------------
 
 # Prevent building with an outdated version of sphinx
-needs_sphinx = "3.1"
+needs_sphinx = "4.0"
 
 # to load local extension from the folder 'sphinx'
 sys.path.insert(0, os.path.abspath('sphinx'))