diff --git a/requirements/doc.txt b/requirements/doc.txt
index 29b493c8b37..9370cbe1746 100644
--- a/requirements/doc.txt
+++ b/requirements/doc.txt
@@ -2,7 +2,7 @@ aiohttp-theme==0.1.6
 # Temp fix till updated: https://github.com/blockdiag/blockdiag/pull/148
 funcparserlib==1.0.0a0
 pygments==2.10.0
-sphinx==4.2.0
+sphinx==4.3.0
 sphinxcontrib-asyncio==0.3.0
 sphinxcontrib-blockdiag==2.0.0
 sphinxcontrib-towncrier==0.2.0a0