diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 47b9be6bde34..5f94d97ac71a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -13287,14 +13287,14 @@ let
 
   sipsimple = buildPythonPackage rec {
     name = "sipsimple-${version}";
-    version = "2.5.0";
+    version = "2.5.1";
     disabled = isPy3k;
 
     configurePhase = "find -name 'configure' -exec chmod a+x {} \\; ; find -name 'aconfigure' -exec chmod a+x {} \\; ; ${python}/bin/${python.executable} setup.py build_ext --pjsip-clean-compile";
 
     src = pkgs.fetchurl {
       url = "http://download.ag-projects.com/SipClient/python-${name}.tar.gz";
-      sha256 = "1k97pdpqjs5dw7v73082jpqhv6xhlrdy987qbdb9a9zvfiz7q8sj";
+      sha256 = "0vpy2vss8667c0kp1k8vybl38nxp7kr2v2wa8sngrgzd65m6ww5p";
     };
 
     propagatedBuildInputs = with self; [ cython pkgs.openssl dns dateutil xcaplib msrplib lxml ];