diff --git a/pkgs/development/python-modules/ntplib/default.nix b/pkgs/development/python-modules/ntplib/default.nix
index be8a370f3f3a..399d27695ad1 100644
--- a/pkgs/development/python-modules/ntplib/default.nix
+++ b/pkgs/development/python-modules/ntplib/default.nix
@@ -5,11 +5,11 @@
 
 buildPythonPackage rec {
   pname = "ntplib";
-  version = "0.3.4";
+  version = "0.4.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "9fc99f71b14641b31698e4ced3d5f974eec225bfbae089ebe44b5808ba890f71";
+    sha256 = "899d8fb5f8c2555213aea95efca02934c7343df6ace9d7628a5176b176906267";
   };
 
   # Require networking