diff --git a/src/monitor_utils/sessions.py b/src/monitor_utils/sessions.py
index a0b0e7b..13abbd8 100644
--- a/src/monitor_utils/sessions.py
+++ b/src/monitor_utils/sessions.py
@@ -11,13 +11,14 @@ import random
 from aioproxies import AioProxies
 from aioweb import Response
 from aioweb_tls import CurlCffi, TLSSession
+from fake_useragent import UserAgent
 
 from monitor_utils.constants import CLIENT_IDENTIFIERS, RETRY_LIMIT
 
+UA = UserAgent()
 
-def get_default_session(
-    proxies: AioProxies, headers: dict | None = None
-) -> TLSSession:
+
+def get_default_session(proxies: AioProxies, headers: dict | None = None) -> TLSSession:
     """Return a TLSSession impersonating a random client fingerprint.
 
     Fingerprint rotation lives here so every monitor rotates the same way; the
@@ -41,6 +42,8 @@ def get_default_session(
         the proxy pool attached as proxy_pool.
     """
 
+    headers = headers or {}
+    headers.setdefault("User-Agent", UA.chrome)
     impersonate = random.choice(CLIENT_IDENTIFIERS)
     session = TLSSession(backend=CurlCffi(impersonate=impersonate), headers=headers)
     session.proxy_pool = proxies