diff --git a/Lib/secrets.py b/Lib/secrets.py
index 1304342..a546efb 100644
--- a/Lib/secrets.py
+++ b/Lib/secrets.py
@@ -14,7 +14,6 @@
 
 import base64
 import binascii
-import os
 
 from hmac import compare_digest
 from random import SystemRandom
@@ -44,7 +43,7 @@
     """
     if nbytes is None:
         nbytes = DEFAULT_ENTROPY
-    return os.urandom(nbytes)
+    return _sysrand.randbytes(nbytes)
 
 def token_hex(nbytes=None):
     """Return a random text string, in hexadecimal.