diff --git a/pkgs/development/python-modules/telnetlib3/default.nix b/pkgs/development/python-modules/telnetlib3/default.nix
index 91df7c300cc6..ab8ea1b60a98 100644
--- a/pkgs/development/python-modules/telnetlib3/default.nix
+++ b/pkgs/development/python-modules/telnetlib3/default.nix
@@ -18,14 +18,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "telnetlib3";
-  version = "4.0.3";
+  version = "4.0.4";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jquast";
     repo = "telnetlib3";
     tag = finalAttrs.version;
-    hash = "sha256-eSgyIGRi8MQly7VmeKBVGHdqGWjBYdUNqjvX3sh8g9g=";
+    hash = "sha256-sOQcVCSPCuz0SEDnTQc30fXAfUyWvkt+j9Fe700Q0Qo=";
   };
 
   build-system = [ hatchling ];