diff --git a/pkgs/development/python-modules/simplebayes/default.nix b/pkgs/development/python-modules/simplebayes/default.nix
index ea3fdd268e4c..bfa761b59e44 100644
--- a/pkgs/development/python-modules/simplebayes/default.nix
+++ b/pkgs/development/python-modules/simplebayes/default.nix
@@ -2,7 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  nose,
+  unittestCheckHook,
   mock,
   isPy3k,
 }:
@@ -22,16 +22,14 @@ buildPythonPackage {
   };
 
   nativeCheckInputs = [
-    nose
     mock
+    unittestCheckHook
   ];
 
   postPatch = lib.optionalString isPy3k ''
     sed -i -e 's/open *(\([^)]*\))/open(\1, encoding="utf-8")/' setup.py
   '';
 
-  checkPhase = "nosetests tests/test.py";
-
   meta = with lib; {
     description = "Memory-based naive bayesian text classifier";
     homepage = "https://github.com/hickeroar/simplebayes";