diff --git a/lib/utils.js b/lib/utils.js
index 084365f..454d74f 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -8,6 +8,7 @@
 // Modules
 const _ = require('lodash'),
 	isGeneratorFunction = require('is-generator').fn;
+const bluebird = require('bluebird');
 
 // Exports
 
@@ -40,7 +41,7 @@ function replaceFieldNames(sql, identifiers, model) {
 		// Replace identifiers
 		sql = sql.replace(
 			new RegExp(`\\*${identifier}(?![a-zA-Z0-9_])`, 'g'),
-			queryInterface.quoteIdentifier(fieldName)
+			queryInterface.queryGenerator.quoteIdentifier(fieldName)
 		);
 	});
 	return sql;
@@ -53,7 +54,7 @@ function replaceTableNames(sql, identifiers, sequelize) {
 		const tableName = model.getTableName();
 		sql = sql.replace(
 			new RegExp(`\\*${identifier}(?![a-zA-Z0-9_])`, 'g'),
-			tableName.schema ? tableName.toString() : queryInterface.quoteIdentifier(tableName)
+			tableName.schema ? tableName.toString() : queryInterface.queryGenerator.quoteIdentifier(tableName)
 		);
 	});
 	return sql;
@@ -100,7 +101,7 @@ function addToFields(fieldName, options) {
 
 // Return `co` and `coAll` functions, using `Sequelize.Promise` (i.e. Bluebird)
 function makeCo(Sequelize) {
-	const co = Sequelize.Promise.coroutine;
+	const co = bluebird.coroutine;
 
 	function coAll(obj) {
 		_.forIn(obj, (value, key) => {
diff --git a/package.json b/package.json
index 8d26887..96d4f20 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,8 @@
   "dependencies": {
     "is-generator": "^1.0.3",
     "lodash": "^4.17.11",
-    "semver-select": "^1.1.0"
+    "semver-select": "^1.1.0",
+    "bluebird": "^3.7.2"
   },
   "devDependencies": {
     "@overlookmotel/eslint-config": "^2.1.2",
@@ -36,7 +37,7 @@
     "pg": "^7.10.0",
     "pg-hstore": "^2.3.2",
     "pg-native": "^3.0.0",
-    "sequelize": "^5.7.5",
+    "sequelize": "^6.3.4",
     "sqlite3": "^4.0.6",
     "tedious": "^6.1.1"
   },
diff --git a/test/support.js b/test/support.js
index 7a8931e..b7d320a 100644
--- a/test/support.js
+++ b/test/support.js
@@ -3,6 +3,7 @@
 const fs = require('fs'),
 	path = require('path'),
 	_ = require('lodash'),
+	bluebird = require('bluebird'),
 	Sequelize = require('sequelize'),
 	DataTypes = require('sequelize/lib/data-types'),
 	chai = require('chai'),
@@ -15,10 +16,10 @@ require('../lib/index')(Sequelize);
 chai.use(chaiAsPromised);
 
 // Make sure errors get thrown when testing
-Sequelize.Promise.onPossiblyUnhandledRejection((e) => {
+bluebird.Promise.onPossiblyUnhandledRejection((e) => {
 	throw e;
 });
-Sequelize.Promise.longStackTraces();
+bluebird.Promise.longStackTraces();
 
 const Support = {
 	Sequelize,
@@ -47,11 +48,11 @@ const Support = {
 		if (dialect === 'sqlite') {
 			const p = path.join(__dirname, 'tmp', 'db.sqlite');
 
-			return new Sequelize.Promise(((resolve) => {
+			return new bluebird.Promise(((resolve) => {
 				// We cannot promisify exists, since exists does not follow node callback convention -
 				// first argument is a boolean, not an error / null
 				if (fs.existsSync(p)) {
-					resolve(Sequelize.Promise.promisify(fs.unlink)(p));
+					resolve(bluebird.Promise.promisify(fs.unlink)(p));
 				} else {
 					resolve();
 				}
@@ -69,7 +70,7 @@ const Support = {
 		if (callback) {
 			callback(sequelize);
 		} else {
-			return Sequelize.Promise.resolve(sequelize);
+			return bluebird.Promise.resolve(sequelize);
 		}
 	},
 
@@ -115,9 +116,13 @@ const Support = {
 				if (sequelize.modelManager.models) sequelize.modelManager.models = [];
 				sequelize.models = {};
 
-				return sequelize
-					.getQueryInterface()
-					.dropAllEnums();
+				const dialect = Support.getTestDialect();
+
+				if (dialect === 'postgres') {
+					return sequelize
+						.getQueryInterface()
+						.dropAllEnums();
+				}
 			});
 	},