diff --git a/pkgs/development/python-modules/aiohttp/default.nix b/pkgs/development/python-modules/aiohttp/default.nix
index 277b16898650..9b76c5565090 100644
--- a/pkgs/development/python-modules/aiohttp/default.nix
+++ b/pkgs/development/python-modules/aiohttp/default.nix
@@ -139,6 +139,8 @@ buildPythonPackage rec {
     "test_uvloop_secure_https_proxy"
     # Cannot connect to host example.com:443 ssl:default [Could not contact DNS servers]
     "test_tcp_connector_ssl_shutdown_timeout_passed_to_create_connection"
+    # Fails with http.cookies.CookieError: Control characters are not allowed in cookies
+    "test_parse_set_cookie_headers_uses_unquote_with_octal"
   ]
   ++ lib.optionals stdenv.hostPlatform.is32bit [ "test_cookiejar" ]
   ++ lib.optionals stdenv.hostPlatform.isDarwin [