diff --git a/src/langbot/pkg/utils/image.py b/src/langbot/pkg/utils/image.py
index d9518e12..e07caec6 100644
--- a/src/langbot/pkg/utils/image.py
+++ b/src/langbot/pkg/utils/image.py
@@ -153,7 +153,9 @@ async def get_qq_image_bytes(image_url: str, query: dict = {}) -> tuple[bytes, s
     ssl_context.check_hostname = False
     ssl_context.verify_mode = ssl.CERT_NONE
     async with aiohttp.ClientSession(trust_env=False) as session:
-        async with session.get(image_url, params=query, ssl=ssl_context) as resp:
+        async with session.get(
+            image_url, params=query, ssl=ssl_context, timeout=aiohttp.ClientTimeout(total=30.0)
+        ) as resp:
             resp.raise_for_status()
             file_bytes = await resp.read()
             content_type = resp.headers.get('Content-Type')