diff --git a/requirements/doc.txt b/requirements/doc.txt
index 15678004d..29743a91c 100644
--- a/requirements/doc.txt
+++ b/requirements/doc.txt
@@ -1,3 +1,3 @@
-sphinx==3.4.2
+sphinx==3.4.3
 pyenchant==3.2.0
 sphinxcontrib-spelling==7.1.0