diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 7c70d76b065b..9b65ab312e0d 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4906,7 +4906,15 @@ in {
       sha256 = "1a873fihw4rhshc722j4h6j7g3nj7xpgsna9hhg3zn6ksknnhx5y";
     };
 
-    propagatedBuildInputs = with self ; [ pytest execnet ];
+    buildInputs = with self; [ pytest];
+    propagatedBuildInputs = with self ; [ execnet ];
+
+    checkPhase = ''
+      py.test
+    '';
+
+    # Too many failing tests. Are they maintained?
+    doCheck = false;
 
     meta = {
       license = licenses.mit;