diff --git a/pkgs/development/python-modules/aiohttp-fast-url-dispatcher/default.nix b/pkgs/development/python-modules/aiohttp-fast-url-dispatcher/default.nix
index 8e4cd760a5f7..e65e3fea31d7 100644
--- a/pkgs/development/python-modules/aiohttp-fast-url-dispatcher/default.nix
+++ b/pkgs/development/python-modules/aiohttp-fast-url-dispatcher/default.nix
@@ -30,6 +30,8 @@ buildPythonPackage rec {
 
   nativeBuildInputs = [ poetry-core ];
 
+  pythonRelaxDeps = [ "aiohttp" ];
+
   propagatedBuildInputs = [ aiohttp ];
 
   nativeCheckInputs = [