diff --git a/pkgs/development/python-modules/pkg-about/default.nix b/pkgs/development/python-modules/pkg-about/default.nix
index f357ec7d6732..7d5f146c57a0 100644
--- a/pkgs/development/python-modules/pkg-about/default.nix
+++ b/pkgs/development/python-modules/pkg-about/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "pkg-about";
-  version = "1.3.7";
+  version = "1.4.0";
   pyproject = true;
 
   disabled = pythonOlder "3.11";
@@ -21,7 +21,7 @@ buildPythonPackage rec {
   src = fetchPypi {
     pname = "pkg_about";
     inherit version;
-    hash = "sha256-xYGDHXLRWxqA7dxs4hhh+qsEcdNwSh1jvAhpyUdbJOg=";
+    hash = "sha256-D3lcyisijpDDQkYWR1OB5dUo2ErnRjmV/H9mCsDJuxM=";
   };
 
   # tox is listed in build requirements but not actually used to build