diff --git a/pkgs/development/python-modules/aiohttp-remotes/default.nix b/pkgs/development/python-modules/aiohttp-remotes/default.nix
index be33becb26c2..4b150b9edeae 100644
--- a/pkgs/development/python-modules/aiohttp-remotes/default.nix
+++ b/pkgs/development/python-modules/aiohttp-remotes/default.nix
@@ -41,6 +41,12 @@ buildPythonPackage rec {
     "aiohttp_remotes"
   ];
 
+  pytestFlagsArray = [
+    "-W"
+    "ignore::DeprecationWarning"
+    "--asyncio-mode=auto"
+  ];
+
   meta = with lib; {
     description = "Set of useful tools for aiohttp.web server";
     homepage = "https://github.com/wikibusiness/aiohttp-remotes";