diff --git a/pkgs/development/python-modules/sseclient/default.nix b/pkgs/development/python-modules/sseclient/default.nix
index 559b3fff178..8ba678ed575 100644
--- a/pkgs/development/python-modules/sseclient/default.nix
+++ b/pkgs/development/python-modules/sseclient/default.nix
@@ -1,6 +1,6 @@
 { stdenv, buildPythonPackage, fetchPypi
 , requests, six
-, backports_unittest-mock, pytest, pytestrunner }:
+, backports_unittest-mock, pytestCheckHook, pytestrunner }:
 
 buildPythonPackage rec {
   pname = "sseclient";
@@ -13,7 +13,10 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ requests six ];
 
-  checkInputs = [ backports_unittest-mock pytest pytestrunner ];
+  checkInputs = [ backports_unittest-mock pytestCheckHook pytestrunner ];
+
+  # tries to open connection to wikipedia
+  disabledTests = [ "event_stream" ];
 
   meta = with stdenv.lib; {
     description = "Client library for reading Server Sent Event streams";