diff --git a/mongo/docker-entrypoint-initdb.d/mongo-init.js b/mongo/docker-entrypoint-initdb.d/mongo-init.js
index ec1f5760d7428fa0929673060d58d0cc6ace342f..106b533c5788e9b1fbee42b644a689ce883af18d 100644
--- a/mongo/docker-entrypoint-initdb.d/mongo-init.js
+++ b/mongo/docker-entrypoint-initdb.d/mongo-init.js
@@ -139,7 +139,8 @@ db.exports.insertMany(
             "policies":{
                 "example/example/1.0":{},
                 "example/example/2.0":{"hello":"world"}
-            }
+            },
+            "cacheTTL": 300
         }
     ]
 );