diff --git a/pkgs/development/python-modules/resolvelib/default.nix b/pkgs/development/python-modules/resolvelib/default.nix
index f45fc2288b41..3e047ae9e71d 100644
--- a/pkgs/development/python-modules/resolvelib/default.nix
+++ b/pkgs/development/python-modules/resolvelib/default.nix
@@ -2,6 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  fetchpatch,
   setuptools,
   commentjson,
   pytestCheckHook,
@@ -19,6 +20,14 @@ buildPythonPackage rec {
     hash = "sha256-AxxW6z51fZGqs5UwY3NEBQL8894uQDuRyVrKzol3ny0=";
   };
 
+  patches = [
+    (fetchpatch {
+      name = "fix-with-packaging-26.patch";
+      url = "https://github.com/sarugaku/resolvelib/commit/017d3a7a9ecdd01f5349d263e31d196f4f27e483.patch";
+      hash = "sha256-sEH5R/U8APC1Lti47ZXHLruVwUbwfGp2HAp7nj+l1KM=";
+    })
+  ];
+
   build-system = [ setuptools ];
 
   nativeCheckInputs = [