diff --git a/openerp/tools/config.py b/openerp/tools/config.py
index 91fdbca86ad..07435075f8d 100644
--- a/openerp/tools/config.py
+++ b/openerp/tools/config.py
@@ -272,10 +272,10 @@ class configmanager(object):
         group.add_option("--workers", dest="workers", my_default=0,
                          help="Specify the number of workers, 0 disable prefork mode.",
                          type="int")
-        group.add_option("--limit-memory-soft", dest="limit_memory_soft", my_default=640 * 1024 * 1024,
+        group.add_option("--limit-memory-soft", dest="limit_memory_soft", my_default=2048 * 1024 * 1024,
                          help="Maximum allowed virtual memory per worker, when reached the worker be reset after the current request (default 671088640 aka 640MB).",
                          type="int")
-        group.add_option("--limit-memory-hard", dest="limit_memory_hard", my_default=768 * 1024 * 1024,
+        group.add_option("--limit-memory-hard", dest="limit_memory_hard", my_default=2560 * 1024 * 1024,
                          help="Maximum allowed virtual memory per worker, when reached, any memory allocation will fail (default 805306368 aka 768MB).",
                          type="int")
         group.add_option("--limit-time-cpu", dest="limit_time_cpu", my_default=60,