diff --git a/swarmlab-app/src/run/app.js b/swarmlab-app/src/run/app.js
index e36a969..8c76f0f 100755
--- a/swarmlab-app/src/run/app.js
+++ b/swarmlab-app/src/run/app.js
@@ -387,7 +387,7 @@ function onCollection(err, collection) {
 //    db.collection('log', onCollection);
 //}
 
-var mongourl = "mongodb://playgrounduser:efvvnuioervefSDFSGYGHRDFVsdfergvssppiiedifhwincvinviw_dbfjbsifbsdkjfswuunscfudfgbbfvibqefwrvnine@ondemand_playground_mongo1:27017,ondemand_playground_mongo2:27017,ondemand_playground_mongo3:27017,ondemand_playground_mongo4:27017,ondemand_playground_mongo5:27017,ondemand_playground_mongo6:27017,ondemand_playground_mongo7:27017?replicaSet=rs1"
+var mongourl = "mongodb://playgrounduser:efvvnuioervefSDFSGYGHRDFVsdfergvssppiiedifhwincvinviw_dbfjbsifbsdkjfswuunscfudfgbbfvibqefwrvnine@ondemand_playground_mongo1:27017,ondemand_playground_mongo2:27017,ondemand_playground_mongo3:27017,ondemand_playground_mongo4:27017,ondemand_playground_mongo5:27017,ondemand_playground_mongo6:27017,ondemand_playground_mongo7:27017/?replicaSet=rs1"
 //MongoClient.connect(mongourl, options).then((client) => {
 MongoClient.connect(mongourl).then((client) => {
     const db = client.db('fluent');