diff --git a/group_vars/sn05.yml b/group_vars/sn05.yml
index 006e1c5a6..ed91c1261 100644
--- a/group_vars/sn05.yml
+++ b/group_vars/sn05.yml
@@ -39,7 +39,7 @@ software_groups_to_install:
 # PostgreSQL
 postgresql_conf:
   - listen_addresses: "'*'"
-  - max_connections: 512
+  - max_connections: 768
   - shared_buffers: "4GB"
   - temp_buffers: "64MB"
   - max_prepared_transactions: 100