diff --git a/spec/initializers/net_http_spec.rb b/spec/initializers/net_http_spec.rb
index f19b83817f6766b434c3588fa2a1b144fd5953e4..8430db62d41a97decc553d18348bce2ce5cdadab 100644
--- a/spec/initializers/net_http_spec.rb
+++ b/spec/initializers/net_http_spec.rb
@@ -157,7 +157,8 @@ def wait_for_server(port, timeout: 5)
   end
 
   describe 'HTTPInformation monkey patch with HTTP requests' do
-    it 'raises InvalidResponseError when server returns 100 Continue' do
+    it 'raises InvalidResponseError when server returns 100 Continue',
+      quarantine: 'https://gitlab.com/gitlab-org/quality/test-failure-issues/-/issues/16437' do
       expect do
         Net::HTTP.get_response(URI("http://localhost:4567/continue"))
       end.to raise_error(Gitlab::HTTP::InvalidResponseError, 'Invalid server response: 1xx responses not supported')