diff --git a/engine/db/add.js b/engine/db/add.js
index 8700c7a..b3ed5f2 100644
--- a/engine/db/add.js
+++ b/engine/db/add.js
@@ -12,6 +12,7 @@ const updateDb = require("./updateDb");
  * Add a db Entry Function
  * ==============================================================================
  * @description Description
+ * @async
  *
  * @param {object} params - An object containing the function parameters.
  * @param {string} params.dbFullName - Database full name
@@ -27,7 +28,7 @@ const updateDb = require("./updateDb");
  * @param {string?} params.encryptionKey - Encryption key
  * @param {string?} params.encryptionSalt - Encryption salt
  *
- * @returns {object}
+ * @returns {Promise<object|null>}
  */
 module.exports = async function add({ dbFullName, tableName, data, tableSchema, duplicateColumnName, duplicateColumnValue, update, dbHost, dbPassword, dbUsername, encryptionKey, encryptionSalt }) {
     /**
diff --git a/engine/db/deleteDb.js b/engine/db/deleteDb.js
index 231e982..b454785 100644
--- a/engine/db/deleteDb.js
+++ b/engine/db/deleteDb.js
@@ -7,6 +7,7 @@ const handler = require("../utils/handler");
  * Delete DB Entry Function
  * ==============================================================================
  * @description Description
+ * @async
  *
  * @param {object} params - An object containing the function parameters.
  * @param {string} params.dbFullName - Database full name
@@ -21,7 +22,7 @@ const handler = require("../utils/handler");
  * @param {string?} params.encryptionKey - Encryption key
  * @param {string?} params.encryptionSalt - Encryption salt
  *
- * @returns {object}
+ * @returns {Promise<object|null>}
  */
 module.exports = async function deleteDb({ dbFullName, tableName, tableSchema, identifierColumnName, identifierValue, dbHost, dbPassword, dbUsername, encryptionKey, encryptionSalt }) {
     try {
diff --git a/engine/db/query.js b/engine/db/query.js
index 98e456a..3940b2f 100644
--- a/engine/db/query.js
+++ b/engine/db/query.js
@@ -8,6 +8,7 @@ const handler = require("../utils/handler");
  * RAW Query DB Function
  * ==============================================================================
  * @description Description
+ * @async
  *
  * @param {object} params - An object containing the function parameters.
  * @param {string} params.dbFullName - Database full name
@@ -16,7 +17,7 @@ const handler = require("../utils/handler");
  * @param {string?} params.dbUsername - Database username
  * @param {string?} params.query - Query string
  *
- * @returns {object}
+ * @returns {Promise<object|null>}
  */
 module.exports = async function query({ dbFullName, dbHost, dbPassword, dbUsername, query }) {
     /**
diff --git a/engine/db/updateDb.js b/engine/db/updateDb.js
index 1ffeabb..7c41a15 100644
--- a/engine/db/updateDb.js
+++ b/engine/db/updateDb.js
@@ -7,6 +7,7 @@ const handler = require("../utils/handler");
  * Update DB Function
  * ==============================================================================
  * @description Description
+ * @async
  *
  * @param {object} params - An object containing the function parameters.
  * @param {string} params.dbFullName - Database full name
@@ -22,7 +23,7 @@ const handler = require("../utils/handler");
  * @param {string?} params.encryptionKey - Encryption key
  * @param {string?} params.encryptionSalt - Encryption salt
  *
- * @returns {object}
+ * @returns {Promise<object|null>}
  */
 module.exports = async function updateDb({ dbFullName, tableName, data, tableSchema, identifierColumnName, identifierValue, dbHost, dbPassword, dbUsername, encryptionKey, encryptionSalt }) {
     /**
diff --git a/package.json b/package.json
index 7ec43fa..7e1ebe1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "datasquirel",
-    "version": "1.1.64",
+    "version": "1.1.65",
     "description": "Cloud-based SQL data management tool",
     "main": "index.js",
     "scripts": {