diff --git a/pkgs/development/python-modules/sphinx/default.nix b/pkgs/development/python-modules/sphinx/default.nix
index d9f64a93813d..0989809a1ff0 100644
--- a/pkgs/development/python-modules/sphinx/default.nix
+++ b/pkgs/development/python-modules/sphinx/default.nix
@@ -32,11 +32,11 @@
 
 buildPythonPackage rec {
   pname = "sphinx";
-  version = "2.2.2";
+  version = "2.3.1";
   src = fetchPypi {
     pname = "Sphinx";
     inherit version;
-    sha256 = "1wjcm382824rq8ijls9mlqwl2h8l26s201v5fwprhnins671m72m";
+    sha256 = "19a28nsb0w4bs6k8rdfyk6vzrcwdpvhs2wq77rgpmww59yvndrz6";
   };
   LC_ALL = "en_US.UTF-8";