diff --git a/pkgs/development/python-modules/sphinxcontrib-plantuml/default.nix b/pkgs/development/python-modules/sphinxcontrib-plantuml/default.nix
index f99d32ec7e21..6e0b7802d03a 100644
--- a/pkgs/development/python-modules/sphinxcontrib-plantuml/default.nix
+++ b/pkgs/development/python-modules/sphinxcontrib-plantuml/default.nix
@@ -8,14 +8,14 @@
 
 buildPythonPackage rec {
   pname = "sphinxcontrib-plantuml";
-  version = "0.28";
+  version = "0.29";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-zpNirT1LvMTDDf38MIqsrSwHs0RjUxZoGnESabjgC+o=";
+    hash = "sha256-l6Tyomr5HbiHcMz4o7LgMwW82n7EGn+Wn8jLJ7hKPEQ=";
   };
 
   propagatedBuildInputs = [