diff --git a/pkgs/development/python-modules/pdm-backend/default.nix b/pkgs/development/python-modules/pdm-backend/default.nix
index 0572a1e633b8..3d32a02768b4 100644
--- a/pkgs/development/python-modules/pdm-backend/default.nix
+++ b/pkgs/development/python-modules/pdm-backend/default.nix
@@ -15,14 +15,14 @@
 
 buildPythonPackage rec {
   pname = "pdm-backend";
-  version = "2.1.6";
+  version = "2.1.7";
   format = "pyproject";
 
   src = fetchFromGitHub {
     owner = "pdm-project";
     repo = "pdm-backend";
     rev = "refs/tags/${version}";
-    hash = "sha256-ZEci8VeKYuORs9iAzaEqrtVBh9fMWHlLsFH1e5PRLwA=";
+    hash = "sha256-1YM/vba+8+2wKcWzPKzkpaWVmHqbFsYdhQSY/VBBAfo=";
   };
 
   env.PDM_BUILD_SCM_VERSION = version;