diff --git a/Endpoint/Controllers/V1/AuthController.cs b/Endpoint/Controllers/V1/AuthController.cs
index 3c26de0..8e52435 100644
--- a/Endpoint/Controllers/V1/AuthController.cs
+++ b/Endpoint/Controllers/V1/AuthController.cs
@@ -75,7 +75,7 @@ public class AuthController(IOptionsSnapshot<Admin> user, IOptionsSnapshot<Gener
 
         if (userId != null)
         {
-            userEntity.OAuthProviders ??= new Dictionary<OAuthProvider, OAuthUser>();
+            userEntity.OAuthProviders ??= [];
 
             if (!userEntity.OAuthProviders.TryAdd(provider, oAuthUser))
             {
@@ -105,7 +105,7 @@ public class AuthController(IOptionsSnapshot<Admin> user, IOptionsSnapshot<Gener
                 TwoFactorAuthenticator = userEntity.TwoFactorAuthenticator,
                 SecondFactorToken = userEntity.Secret,
                 OAuthProviders = userEntity.OAuthProviders
-            }, provider);
+            });
 
             title = "Успешный вход в аккаунт.";
             message = "Вы успешно вошли в свою учетную запись. Добро пожаловать!";
@@ -152,7 +152,7 @@ public class AuthController(IOptionsSnapshot<Admin> user, IOptionsSnapshot<Gener
     [MaintenanceModeIgnore]
     public ActionResult<List<AvailableOAuthProvidersResponse>> AvailableProviders() =>
         Ok(oAuthService
-            .GetAvailableProviders(HttpContext, HttpContext.GetApiUrl(Url.Action("AuthorizeOAuth2")!))
+            .GetAvailableProviders(HttpContext.GetApiUrl(Url.Action("AuthorizeOAuth2")!))
             .ConvertToDto());
 
     /// <summary>
diff --git a/Security/Services/AuthService.cs b/Security/Services/AuthService.cs
index 7eb71a7..33c5d27 100644
--- a/Security/Services/AuthService.cs
+++ b/Security/Services/AuthService.cs
@@ -107,7 +107,7 @@ public class AuthService(ICacheService cache, IAccessToken accessTokenService, I
             authToken.Fingerprint);
     }
 
-    public async Task<TwoFactorAuthenticator> LoginOAuthAsync(CookieOptionsParameters cookieOptions, HttpContext context, User user, OAuthProvider provider, CancellationToken cancellation = default)
+    public async Task<TwoFactorAuthenticator> LoginOAuthAsync(CookieOptionsParameters cookieOptions, HttpContext context, User user, CancellationToken cancellation = default)
     {
         var requestContext = new RequestContextInfo(context, cookieOptions);
 
diff --git a/Security/Services/OAuthService.cs b/Security/Services/OAuthService.cs
index b2ef0ee..0f99548 100644
--- a/Security/Services/OAuthService.cs
+++ b/Security/Services/OAuthService.cs
@@ -108,9 +108,9 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
 
     public Uri GetProviderRedirect(HttpContext context, CookieOptionsParameters cookieOptions, string redirectUri, OAuthProvider provider)
     {
-        var providerData = providers[provider];
+        var (clientId, _) = providers[provider];
 
-        var redirectUrl = $"?client_id={providerData.ClientId}" +
+        var redirectUrl = $"?client_id={clientId}" +
                                 "&response_type=code" +
                                 $"&redirect_uri={redirectUri}" +
                                 $"&scope={ProviderData[provider].Scope}" +
@@ -121,10 +121,9 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
         return new Uri(ProviderData[provider].RedirectUrl + redirectUrl);
     }
 
-    public (OAuthProvider Provider, Uri Redirect)[] GetAvailableProviders(HttpContext context, string redirectUri)
+    public (OAuthProvider Provider, Uri Redirect)[] GetAvailableProviders(string redirectUri)
     {
-        return providers.Select(x => (x.Key, new Uri(redirectUri.TrimEnd('/') + "/?provider=" + (int)x.Key)))
-            .ToArray();
+        return [.. providers.Select(x => (x.Key, new Uri(redirectUri.TrimEnd('/') + "/?provider=" + (int)x.Key)))];
     }
 
     public async Task<(OAuthProvider provider, OAuthUser User)> LoginOAuth(HttpContext context, CookieOptionsParameters cookieOptions, string redirectUrl, string code, string state, CancellationToken cancellation = default)