diff --git a/run.py b/run.py
index d95904e..bf3ab3a 100755
--- a/run.py
+++ b/run.py
@@ -112,8 +112,12 @@ def log_message(self, format, *args):
         pass
 
 
+class BenchmarkHTTPServer(HTTPServer):
+    request_queue_size = 128
+
+
 def start_http_server():
-    server = HTTPServer(('localhost', 0), BenchmarkHTTPRequestHandler)
+    server = BenchmarkHTTPServer(('localhost', 0), BenchmarkHTTPRequestHandler)
     server.running_ladybird_process = None
     server.last_progress_time = time.monotonic()
     server.current_test = None