diff --git a/pkgs/development/python-modules/inflection/default.nix b/pkgs/development/python-modules/inflection/default.nix
index bc2a24abe59..f41e72def8d 100644
--- a/pkgs/development/python-modules/inflection/default.nix
+++ b/pkgs/development/python-modules/inflection/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "inflection";
-  version = "0.3.1";
+  version = "0.4.0";
 
   src = fetchPypi {
    inherit pname version;
-   sha256 = "1jhnxgnw8y3mbzjssixh6qkc7a3afc4fygajhqrqalnilyvpzshq";
+   sha256 = "32a5c3341d9583ec319548b9015b7fbdf8c429cbcb575d326c33ae3a0e90d52c";
   };
 
   checkInputs = [ pytest ];