diff --git a/pkgs/development/python-modules/python-toolbox/default.nix b/pkgs/development/python-modules/python-toolbox/default.nix
index d9c9f9ec2b66..a6f49f9ad8f9 100644
--- a/pkgs/development/python-modules/python-toolbox/default.nix
+++ b/pkgs/development/python-modules/python-toolbox/default.nix
@@ -4,22 +4,19 @@
   docutils,
   fetchFromGitHub,
   pytestCheckHook,
-  pythonOlder,
   setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "python-toolbox";
-  version = "1.2.10";
+  version = "1.3.1";
   pyproject = true;
 
-  disabled = pythonOlder "3.9";
-
   src = fetchFromGitHub {
     owner = "cool-RR";
     repo = "python_toolbox";
     tag = version;
-    hash = "sha256-+Q7r4nbubp2xzkBgEyTuA0EeIvpT4bW+2NnckVkEKcY=";
+    hash = "sha256-pbo4vhypM97OXh6CxK42EbZdrXljvj5rmP9C9RDPo5g=";
   };
 
   build-system = [ setuptools ];
@@ -43,7 +40,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Tools for testing PySnooper";
     homepage = "https://github.com/cool-RR/python_toolbox";
-    changelog = "https://github.com/cool-RR/python_toolbox/releases/tag/${version}";
+    changelog = "https://github.com/cool-RR/python_toolbox/releases/tag/${src.tag}";
     license = licenses.mit;
     maintainers = with maintainers; [ seqizz ];
   };