diff --git a/pkgs/development/python-modules/pbr/default.nix b/pkgs/development/python-modules/pbr/default.nix
index 666df965f87b..e1843e4a75df 100644
--- a/pkgs/development/python-modules/pbr/default.nix
+++ b/pkgs/development/python-modules/pbr/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "pbr";
-  version = "4.1.1";
+  version = "4.2.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "754e766b4f4bad3aa68cfd532456298da1aa39375da8748392dbae90860d5f18";
+    sha256 = "1b8be50d938c9bb75d0eaf7eda111eec1bf6dc88a62a6412e33bf077457e0f45";
   };
 
   # circular dependencies with fixtures