diff --git a/models/ShortenedLink.ts b/models/ShortenedLink.ts
index 34cceee..6ec5b3d 100644
--- a/models/ShortenedLink.ts
+++ b/models/ShortenedLink.ts
@@ -1,35 +1,37 @@
-import mongoose, {Schema} from 'mongoose';
+import {sequelize} from "../app";
 import * as crypto from "crypto";
+import {DataTypes, InferAttributes, InferCreationAttributes, Model} from "sequelize";
 
-export interface IShortenedLink {
-    shortenedId: string
+export interface IShortenedLink extends Model<InferAttributes<IShortenedLink>, InferCreationAttributes<IShortenedLink>> {
+    shortenedId?: string
     originalUrl: string
-    clientId: number
-    clicks: number
-    created: Date
+    clientId?: number
+    clicks?: number
+    created?: Date
 }
 
-const ShortenedSchema = new Schema<IShortenedLink>({
+const ShortenedSchema = sequelize.define<IShortenedLink>('shortened_links', {
     shortenedId: {
-        type: String,
-        default: () => crypto.randomBytes(3).toString('hex')
+        type: DataTypes.STRING,
+        defaultValue: () => crypto.randomBytes(3).toString('hex'),
+        allowNull: true
     },
     originalUrl: {
-        type: String,
-        required: true
+        type: DataTypes.STRING,
+        allowNull: false
     },
     clientId: {
-        type: Number,
-        required: true
+        type: DataTypes.BIGINT,
+        allowNull: false
     },
     clicks: {
-        type: Number,
-        default: 0
+        type: DataTypes.INTEGER,
+        defaultValue: 0
     },
     created: {
-        type: Date,
-        default: Date.now
+        type: DataTypes.DATE,
+        defaultValue: Date.now
     }
 });
 
-export const ShortenedLink = mongoose.model('shortened_links', ShortenedSchema);
\ No newline at end of file
+export const ShortenedLink = ShortenedSchema;
\ No newline at end of file