diff --git a/pkgs/development/python-modules/matrix-nio/default.nix b/pkgs/development/python-modules/matrix-nio/default.nix
index 75385ef5f24f..7ca6a5b9fe3a 100644
--- a/pkgs/development/python-modules/matrix-nio/default.nix
+++ b/pkgs/development/python-modules/matrix-nio/default.nix
@@ -60,6 +60,13 @@ buildPythonPackage rec {
     ./allow-tests-without-olm.patch
   ];
 
+  postPatch = ''
+    # Fix yarl compat about url normalization
+    substituteInPlace tests/async_client_test.py \
+      --replace-fail "?&" "?"
+
+  '';
+
   build-system = [ setuptools ];
 
   dependencies = [
@@ -115,6 +122,9 @@ buildPythonPackage rec {
     "test_connect_wrapper"
     # time dependent and flaky
     "test_transfer_monitor_callbacks"
+    # _plain_data_generator yields str but test expectes bytes
+    "test_upload_retry"
+    "test_upload_text_file_object"
   ]
   ++ lib.optionals (!withOlm) [
     "test_client_account_sharing"