diff --git a/pkgs/tools/system/ps_mem/default.nix b/pkgs/tools/system/ps_mem/default.nix
index ad256e36656..bde4429c481 100644
--- a/pkgs/tools/system/ps_mem/default.nix
+++ b/pkgs/tools/system/ps_mem/default.nix
@@ -1,7 +1,7 @@
 { stdenv, pythonPackages, fetchFromGitHub }:
 
 let
-  version = "3.12";
+  version = "3.13";
   pname = "ps_mem";
 in pythonPackages.buildPythonApplication {
   name = "${pname}-${version}";
@@ -10,7 +10,7 @@ in pythonPackages.buildPythonApplication {
     owner = "pixelb";
     repo = pname;
     rev = "v${version}";
-    sha256 = "0kcxlmfisbwf24p2k72njfyfp22fjr9p9zalg9b4w0yhnlzk24ph";
+    sha256 = "0pgi9hvwfbkzvwicqlkwx4rwal1ikza018yxbwpnf7c80zw0zaw9";
   };
 
   meta = with stdenv.lib; {