diff --git a/src/server/database/MongoDB.js b/src/server/database/MongoDB.js
index 3b77bf5..05c88df 100644
--- a/src/server/database/MongoDB.js
+++ b/src/server/database/MongoDB.js
@@ -40,7 +40,7 @@ class MongoDB {
                 this.logger.warn(`No auth provided, proceeding without`); 
             }
 
-            this.URI = `mongodb://${auth}${MONGO_HOST}:${MONGO_PORT}/${MONGO_DB}${AUTH_DB ? `?authSource=${AUTH_DB}` : ''}`; 
+            this.URI = `mongodb://${auth}${MONGO_HOST}:${MONGO_PORT}/${AUTH_DB || ''}?readPreference=preferSecondary`; 
         }
         
         this.client = new MongoClient(this.URI, this.config.options.client);