diff --git a/backend/Directory.Packages.props b/backend/Directory.Packages.props
index e4c694a..259c422 100644
--- a/backend/Directory.Packages.props
+++ b/backend/Directory.Packages.props
@@ -25,7 +25,7 @@
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.9" />
     <PackageVersion Include="System.IdentityModel.Tokens.Jwt" Version="8.19.1" />
     <PackageVersion Include="Telegram.Bot" Version="22.10.1" />
-    <PackageVersion Include="ThreeXui.Net" Version="1.0.0" />
+    <PackageVersion Include="ThreeXui.Net" Version="1.0.1" />
     <!-- Тестирование (M8) -->
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageVersion Include="xunit" Version="2.9.3" />
diff --git a/backend/src/PnvPanel.Application/Auth/ChangePassword/ChangePasswordCommandValidator.cs b/backend/src/PnvPanel.Application/Auth/ChangePassword/ChangePasswordCommandValidator.cs
index d8f6acd..03d62be 100644
--- a/backend/src/PnvPanel.Application/Auth/ChangePassword/ChangePasswordCommandValidator.cs
+++ b/backend/src/PnvPanel.Application/Auth/ChangePassword/ChangePasswordCommandValidator.cs
@@ -7,6 +7,10 @@ public sealed class ChangePasswordCommandValidator : AbstractValidator<ChangePas
     public ChangePasswordCommandValidator()
     {
         RuleFor(x => x.CurrentPassword).NotEmpty();
-        RuleFor(x => x.NewPassword).NotEmpty().MinimumLength(8);
+        RuleFor(x => x.NewPassword)
+            .NotEmpty()
+            .MinimumLength(8)
+            .Matches("^(?=.*[A-Z])(?=.*[0-9]).+$")
+            .WithMessage("Пароль должен содержать минимум одну заглавную букву и одну цифру.");
     }
 }
diff --git a/backend/src/PnvPanel.Application/Auth/Register/RegisterCommandValidator.cs b/backend/src/PnvPanel.Application/Auth/Register/RegisterCommandValidator.cs
index a763e27..af11994 100644
--- a/backend/src/PnvPanel.Application/Auth/Register/RegisterCommandValidator.cs
+++ b/backend/src/PnvPanel.Application/Auth/Register/RegisterCommandValidator.cs
@@ -14,6 +14,8 @@ public sealed class RegisterCommandValidator : AbstractValidator<RegisterCommand
 
         RuleFor(x => x.Password)
             .NotEmpty()
-            .MinimumLength(8);
+            .MinimumLength(8)
+            .Matches("^(?=.*[A-Z])(?=.*[0-9]).+$")
+            .WithMessage("Пароль должен содержать минимум одну заглавную букву и одну цифру.");
     }
 }
diff --git a/frontend/src/features/auth/RegisterForm.tsx b/frontend/src/features/auth/RegisterForm.tsx
index 1b2af04..16e8be9 100644
--- a/frontend/src/features/auth/RegisterForm.tsx
+++ b/frontend/src/features/auth/RegisterForm.tsx
@@ -15,7 +15,10 @@ const schema = z.object({
     .min(3)
     .max(32)
     .regex(/^[a-zA-Z0-9_.-]+$/),
-  password: z.string().min(8),
+  password: z
+    .string()
+    .min(8)
+    .regex(/^(?=.*[A-Z])(?=.*[0-9]).+$/),
 })
 
 type FormValues = z.infer<typeof schema>
@@ -36,7 +39,11 @@ export function RegisterForm({ onSuccess }: { onSuccess: () => void }) {
       onSuccess()
     } catch (error) {
       const message =
-        error instanceof HttpError && error.status === 409 ? t('auth.duplicateUserName') : t('auth.genericError')
+        error instanceof HttpError && error.status === 409
+          ? t('auth.duplicateUserName')
+          : error instanceof HttpError
+            ? error.detail
+            : t('auth.genericError')
       toast.error(message)
     }
   }
diff --git a/frontend/src/features/settings/ChangePasswordForm.tsx b/frontend/src/features/settings/ChangePasswordForm.tsx
index 2601a7d..e2794f4 100644
--- a/frontend/src/features/settings/ChangePasswordForm.tsx
+++ b/frontend/src/features/settings/ChangePasswordForm.tsx
@@ -12,7 +12,10 @@ import { changePassword } from '@/features/auth/api'
 
 const schema = z.object({
   currentPassword: z.string().min(1),
-  newPassword: z.string().min(8),
+  newPassword: z
+    .string()
+    .min(8)
+    .regex(/^(?=.*[A-Z])(?=.*[0-9]).+$/),
 })
 
 type FormValues = z.infer<typeof schema>