diff --git a/src/main/java/com/alibou/security/user/UserService.java b/src/main/java/com/alibou/security/user/UserService.java
index a17181d..d6c812a 100644
--- a/src/main/java/com/alibou/security/user/UserService.java
+++ b/src/main/java/com/alibou/security/user/UserService.java
@@ -1,21 +1,19 @@
 package com.alibou.security.user;
 
 import lombok.RequiredArgsConstructor;
-import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.Authentication;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
 
-import java.security.Principal;
-
 @Service
 @RequiredArgsConstructor
 public class UserService {
 
     private final PasswordEncoder passwordEncoder;
     private final UserRepository repository;
-    public void changePassword(ChangePasswordRequest request, Principal connectedUser) {
+    public void changePassword(ChangePasswordRequest request, Authentication authentication) {
 
-        var user = (User) ((UsernamePasswordAuthenticationToken) connectedUser).getPrincipal();
+        var user = (User) authentication.getPrincipal();
 
         // check if the current password is correct
         if (!passwordEncoder.matches(request.getCurrentPassword(), user.getPassword())) {