diff --git a/scrapy/utils/python.py b/scrapy/utils/python.py
index afa8a8135..9204977cf 100644
--- a/scrapy/utils/python.py
+++ b/scrapy/utils/python.py
@@ -285,6 +285,7 @@ class WeakKeyCache:
         return self._weakdict[key]
 
 
+@deprecated
 def retry_on_eintr(function, *args, **kw):
     """Run a function and retry it while getting EINTR errors"""
     while True: