diff --git a/pkgs/development/python-modules/aiortc/default.nix b/pkgs/development/python-modules/aiortc/default.nix
index c1111963e9f0..12710d9f4eaf 100644
--- a/pkgs/development/python-modules/aiortc/default.nix
+++ b/pkgs/development/python-modules/aiortc/default.nix
@@ -50,6 +50,8 @@ buildPythonPackage rec {
     dnspython
   ];
 
+  pythonRelaxDeps = [ "av" ];
+
   nativeCheckInputs = [
     numpy
     pytestCheckHook