diff --git a/pkgs/development/python-modules/sphinx/default.nix b/pkgs/development/python-modules/sphinx/default.nix
index 9c7d699d20f..77256ef6cff 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 = "2.3.1";
+  version = "3.0.3";
   src = fetchPypi {
     pname = "Sphinx";
     inherit version;
-    sha256 = "19a28nsb0w4bs6k8rdfyk6vzrcwdpvhs2wq77rgpmww59yvndrz6";
+    hash = "sha256:0wpmqfx4mxv5kv9xxd6wyfsm8vcnp8p99h14q7b6if2mv69gvvb2";
   };
   LC_ALL = "en_US.UTF-8";