diff --git a/pkgs/development/python-modules/favicon/default.nix b/pkgs/development/python-modules/favicon/default.nix
index 1b42710b16fc..0800994eb61d 100644
--- a/pkgs/development/python-modules/favicon/default.nix
+++ b/pkgs/development/python-modules/favicon/default.nix
@@ -34,6 +34,10 @@ buildPythonPackage rec {
     requests-mock
   ];
 
+  pytestFlagsArray = [
+    "-W" "ignore::pytest.PytestRemovedIn8Warning"
+  ];
+
   pythonImportsCheck = [
     "favicon"
   ];