Index: ChapterX.API/Controllers/UsersController.cs
===================================================================
--- ChapterX.API/Controllers/UsersController.cs	(revision b373fea3e2c9d404606002f8e7ba265a82d68187)
+++ ChapterX.API/Controllers/UsersController.cs	(revision a8f4a2de5e875427a864aef1aa2ca9b7905549cc)
@@ -5,5 +5,4 @@
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
-using System.IdentityModel.Tokens.Jwt;
 using System.Security.Claims;
 
@@ -69,5 +68,5 @@
             }
 
-            var callerId = int.Parse(User.FindFirstValue(JwtRegisteredClaimNames.Sub)!);
+            var callerId = int.Parse(User.FindFirstValue(ClaimTypes.NameIdentifier)!);
             var isAdmin = User.IsInRole("Admin");
             if (callerId != id && !isAdmin)
@@ -83,5 +82,5 @@
         {
             _logger.LogInformation("Deleting user with ID: {UserId}", id);
-            var callerId = int.Parse(User.FindFirstValue(JwtRegisteredClaimNames.Sub)!);
+            var callerId = int.Parse(User.FindFirstValue(ClaimTypes.NameIdentifier)!);
             var isAdmin = User.IsInRole("Admin");
             if (callerId != id && !isAdmin)