diff --git a/linkedin_messaging/linkedin.py b/linkedin_messaging/linkedin.py
index 5678291..3ee52df 100644
--- a/linkedin_messaging/linkedin.py
+++ b/linkedin_messaging/linkedin.py
@@ -158,9 +158,9 @@ def from_cookies_and_headers(cookies: dict[str, str],
 
         # Skip these headers, including them will result in events being received in a newer
         # format that we don't support
-        del linkedin.headers["x-li-query-map"]
-        del linkedin.headers["x-li-query-accept"]
-        del linkedin.headers["x-li-accept"]
+        linkedin.headers.pop("x-li-query-map", None)
+        linkedin.headers.pop("x-li-query-accept", None)
+        linkedin.headers.pop("x-li-accept", None)
 
         return linkedin