diff --git a/modules/communication.nix b/modules/communication.nix
index 45b062b..e9cbec6 100644
--- a/modules/communication.nix
+++ b/modules/communication.nix
@@ -3,7 +3,13 @@
 with pkgs;
 
 # NOTE Reference the environment variable set in the corresponding agenix secret
-let database.connection_string = "$DB_STRING";
+let
+  database = {
+    connection_string = "$DB_STRING";
+    max_open_conns = 100;
+    max_idle_conns = 5;
+    conn_max_lifetime = -1;
+  };
 
 in {
   # Matrix server configuration
@@ -17,6 +23,7 @@ in {
         server_name = "coolneng.duckdns.org";
         private_key = config.age.secrets.dendrite.path;
         inherit database;
+        dns_cache.enabled = true;
       };
       # HACK Inherit postgres connection string for the rest of the DBs
       app_service_api = {