diff --git a/requests/defaults.py b/requests/defaults.py
index 951c056d..e3f5478d 100644
--- a/requests/defaults.py
+++ b/requests/defaults.py
@@ -35,4 +35,5 @@ defaults['max_redirects'] = 30
 defaults['decode_unicode'] = True
 defaults['timeout_fallback'] = True
 # defaults['keep_alive'] = True
-# defaults['max_connections'] = 10
\ No newline at end of file
+defaults['pool_connections'] = 10
+defaults['pool_maxsize'] = 1
\ No newline at end of file