diff --git a/gunicorn/arbiter.py b/gunicorn/arbiter.py
index 1eaf453d5..2d2f8211d 100644
--- a/gunicorn/arbiter.py
+++ b/gunicorn/arbiter.py
@@ -550,7 +550,7 @@ def reap_workers(self):
                         # Additional hint for SIGKILL
                         if status == signal.SIGKILL:
                             msg += " Perhaps out of memory?"
-                        self.log.error(msg)
+                        self.log.warning(msg)
 
                     worker = self.WORKERS.pop(wpid, None)
                     if not worker: