diff --git a/src/models/entities/User.ts b/src/models/entities/User.ts
index 1d2065e..8e29e27 100644
--- a/src/models/entities/User.ts
+++ b/src/models/entities/User.ts
@@ -19,14 +19,14 @@ export class User {
   /**
   * uuid
   */
-  @Column()
+  @Column({ unique: true })
   @IsUUID(4)
   uuid: string;
 
   /**
   * user email
   */
-  @Column({ nullable: true })
+  @Column({ nullable: true, unique: true })
   @IsEmail()
   email?: string;
 
@@ -41,7 +41,7 @@ export class User {
   /**
   * username
   */
-  @Column({ nullable: true })
+  @Column({ nullable: true, unique: true })
   @IsString()
   username?: string;
 
@@ -109,7 +109,7 @@ export class User {
   /**
   * profilepic
   */
-  @Column({ nullable: true })
+  @Column({ nullable: true, unique: true })
   @IsString()
   @IsOptional()
   profilePic?: string;