diff --git a/ansible/group_vars/store-db.yml b/ansible/group_vars/store-db.yml
index cd2b628..dcd8579 100644
--- a/ansible/group_vars/store-db.yml
+++ b/ansible/group_vars/store-db.yml
@@ -55,6 +55,9 @@ postgres_system_setting_stage:
     ## Autovacuum
     autovacuum: 'off'
 
+# For each 16GB of ram, 1 GB is set to share memory
+postgres_share_memory: '{{ ansible_memtotal_mb / 16 | int }}m'
+
 # Consul
 postgres_ha_consul_check_interval: '60s'
 postgres_ha_consul_check_timeout: '5s'
diff --git a/ansible/requirements.yml b/ansible/requirements.yml
index 333215d..8643724 100644
--- a/ansible/requirements.yml
+++ b/ansible/requirements.yml
@@ -26,4 +26,4 @@
 
 - name: infra-role-postgres-ha
   src: git@github.com:status-im/infra-role-postgres-ha.git
-  version: 04b78168fd8024e8af2c6ec1d0ee28eeea7742a2
+  version: aa752f40623a7f92ce4a95c40cbbabf815452945