diff --git a/nix/packages/default.nix b/nix/packages/default.nix
index 05da589..608cbd9 100644
--- a/nix/packages/default.nix
+++ b/nix/packages/default.nix
@@ -31,6 +31,7 @@
           python311Packages.tomli
           python311Packages.email-validator
           python311Packages.packaging
+          python311Packages.pbr
         ];
       });