diff --git a/cluster/openstack/config-default.sh b/cluster/openstack/config-default.sh
index 98f4bc5b662..643fb5e0a49 100644
--- a/cluster/openstack/config-default.sh
+++ b/cluster/openstack/config-default.sh
@@ -29,9 +29,9 @@ NUMBER_OF_MINIONS=${NUMBER_OF_MINIONS-3}
 
 MAX_NUMBER_OF_MINIONS=${MAX_NUMBER_OF_MINIONS:-3}
 
-MASTER_FLAVOR=${MASTER_FLAVOR:-m1.small}
+MASTER_FLAVOR=${MASTER_FLAVOR:-m1.medium}
 
-MINION_FLAVOR=${MINION_FLAVOR:-m1.small}
+MINION_FLAVOR=${MINION_FLAVOR:-m1.medium}
 
 EXTERNAL_NETWORK=${EXTERNAL_NETWORK:-public}