diff --git a/scrapy_playwright/_utils.py b/scrapy_playwright/_utils.py
index 2659828..fa6902b 100644
--- a/scrapy_playwright/_utils.py
+++ b/scrapy_playwright/_utils.py
@@ -142,7 +142,6 @@ def start(cls, caller_id: int) -> None:
             if platform.system() == "Windows":
                 policy = asyncio.WindowsProactorEventLoopPolicy()  # type: ignore[attr-defined]
             cls._loop = policy.new_event_loop()
-            asyncio.set_event_loop(cls._loop)
 
         if not getattr(cls, "_thread", None):
             cls._thread = threading.Thread(target=cls._loop.run_forever, daemon=True)