diff --git a/group_vars/proxy.yml b/group_vars/proxy.yml
index 9f8eeb2..c3ffdcd 100644
--- a/group_vars/proxy.yml
+++ b/group_vars/proxy.yml
@@ -1,4 +1,6 @@
 ---
+# increase memory size
+mem_size: 1024
 # use bigger disk for os as we have web site data there
 dsk_size: 30