diff --git a/pkgs/development/python-modules/python-bsblan/default.nix b/pkgs/development/python-modules/python-bsblan/default.nix
index 2ffc8ed0b7f2..bfa3f38e4597 100644
--- a/pkgs/development/python-modules/python-bsblan/default.nix
+++ b/pkgs/development/python-modules/python-bsblan/default.nix
@@ -55,6 +55,12 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  disabledTests = lib.optionals (lib.versionAtLeast aiohttp.version "3.9.0") [
+    # https://github.com/liudger/python-bsblan/issues/808
+    "test_http_error400"
+    "test_not_authorized_401_response"
+  ];
+
   pythonImportsCheck = [
     "bsblan"
   ];