diff --git a/backend/src/main/java/ch/sectioninformatique/template/user/UserController.java b/backend/src/main/java/ch/sectioninformatique/template/user/UserController.java
index e0ef4bbd..9f874cb5 100644
--- a/backend/src/main/java/ch/sectioninformatique/template/user/UserController.java
+++ b/backend/src/main/java/ch/sectioninformatique/template/user/UserController.java
@@ -259,6 +259,20 @@ public Mono<ResponseEntity<String>> revokeAdmin(@RequestHeader("Authorization")
     @PreAuthorize("hasAuthority('user:update')")
     public Mono<ResponseEntity<String>> downgradeAdmin(@RequestHeader("Authorization") String token,
             @PathVariable String userLogin) {
+
+               Authentication authentication = SecurityContextHolder
+                .getContext()
+                .getAuthentication();
+            
+                UserDto currentUser = (UserDto) authentication.getPrincipal();
+                if (currentUser.getLogin().equals(userLogin)) {
+                    String message = messageSource.getMessage(
+                        "user.downgrade.self",
+                        null,
+                        LocaleContextHolder.getLocale());
+                    return Mono.just(ResponseEntity.badRequest().body(message));
+                }
+
         // Call auth service to downgrade admin to manager globally
         return authClient.downgradeAdmin(token, userLogin)
                 .flatMap(response -> {
diff --git a/backend/src/main/resources/messages/user/messages_en.properties b/backend/src/main/resources/messages/user/messages_en.properties
index 121873b1..ef1ed92f 100644
--- a/backend/src/main/resources/messages/user/messages_en.properties
+++ b/backend/src/main/resources/messages/user/messages_en.properties
@@ -24,3 +24,4 @@ user.duplicate=Duplicate user detected: {0}
 user.delete.permanent.failed=Failed to permanently delete user: {0}
 user.deleted.local=Local user deleted successfully
 user.promoted.local=User promoted to local app role successfully
+user.downgrade.self=You cannot downgrade your own role
diff --git a/backend/src/main/resources/messages/user/messages_fr.properties b/backend/src/main/resources/messages/user/messages_fr.properties
index c3b7a6b6..5ddc72f0 100644
--- a/backend/src/main/resources/messages/user/messages_fr.properties
+++ b/backend/src/main/resources/messages/user/messages_fr.properties
@@ -24,3 +24,4 @@ user.duplicate=Utilisateur en double détecté : {0}
 user.delete.permanent.failed=Échec de la suppression définitive de l''utilisateur : {0}
 user.deleted.local=Utilisateur local supprimé avec succès
 user.promoted.local=Utilisateur promu au rôle local de l''application avec succès
+user.downgrade.self=Vous ne pouvez pas rétrograder votre propre rôle
\ No newline at end of file