diff --git a/pkgs/development/python-modules/jsonschema-spec/default.nix b/pkgs/development/python-modules/jsonschema-spec/default.nix
index 8ed87aca939a..a3439ea1b824 100644
--- a/pkgs/development/python-modules/jsonschema-spec/default.nix
+++ b/pkgs/development/python-modules/jsonschema-spec/default.nix
@@ -20,7 +20,7 @@
 
 buildPythonPackage rec {
   pname = "jsonschema-spec";
-  version = "0.3.3";
+  version = "0.3.4";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
@@ -29,7 +29,7 @@ buildPythonPackage rec {
     owner = "p1c2u";
     repo = pname;
     tag = version;
-    hash = "sha256-oBzB6Ke19QDcMQm4MpnaS132/prrtnCekAXuPMloZx4=";
+    hash = "sha256-rCepDnVAOEsokKjWCuqDYbGIq6/wn4rsQRx5dXTUsYo=";
   };
 
   postPatch = ''