diff --git a/pkgs/tools/package-management/pdm/default.nix b/pkgs/tools/package-management/pdm/default.nix
index a7b7f26f17a984..8bfb1a76bb0cfe 100644
--- a/pkgs/tools/package-management/pdm/default.nix
+++ b/pkgs/tools/package-management/pdm/default.nix
@@ -10,7 +10,7 @@
 
 python3.pkgs.buildPythonApplication rec {
   pname = "pdm";
-  version = "2.19.3";
+  version = "2.20.0.post1";
   pyproject = true;
 
   disabled = python3.pkgs.pythonOlder "3.8";
@@ -19,7 +19,7 @@ python3.pkgs.buildPythonApplication rec {
     owner = "pdm-project";
     repo = "pdm";
     rev = "refs/tags/${version}";
-    hash = "sha256-xgwIPHlTtmgCNN4R6/BJsqmI9hbA0wFAiq4YCa+r/UM=";
+    hash = "sha256-3Y8RscfEfx04cnxXiCLCcVdIv/J6un1z9F6Ot/uo5dE=";
   };
 
   nativeBuildInputs = [ installShellFiles ];