diff --git a/setup.cfg b/setup.cfg
index f14d141f..defdd490 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -59,7 +59,7 @@ dev =
     zest.releaser>=6.20.1
 
 doc =
-    Sphinx==4.3.0
+    Sphinx==4.3.1
     docutils==0.17.1
     myst-parser