diff --git a/pkgs/development/python-modules/pbr/default.nix b/pkgs/development/python-modules/pbr/default.nix
index 7a03226b4dde..7fb0574f75a0 100644
--- a/pkgs/development/python-modules/pbr/default.nix
+++ b/pkgs/development/python-modules/pbr/default.nix
@@ -7,13 +7,14 @@
 
 buildPythonPackage rec {
   pname = "pbr";
-  version = "5.8.1";
+  version = "5.9.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-ZrxaNJEvQIuzklvyEjHLb1kgYme39j81A++GXBopLiU=";
+    sha256 = "sha256-6Nyi9LQ1YO3vWIE5afUqVs7wIxRsu4kxYm24DmwcQwg=";
   };
 
+  # importlib-metadata could be added here if it wouldn't cause an infinite recursion
   propagatedBuildInputs = [ setuptools ];
 
   # check in passthru.tests.pytest to escape infinite recursion with fixtures