diff --git a/src/Atc.Rest.Extended/Options/ConfigureAuthorizationOptions.cs b/src/Atc.Rest.Extended/Options/ConfigureAuthorizationOptions.cs
index 473da089..ac46a972 100644
--- a/src/Atc.Rest.Extended/Options/ConfigureAuthorizationOptions.cs
+++ b/src/Atc.Rest.Extended/Options/ConfigureAuthorizationOptions.cs
@@ -22,8 +22,7 @@ public ConfigureAuthorizationOptions(
     [SuppressMessage("Design", "MA0051:Method is too long", Justification = "OK.")]
     [SuppressMessage("Design", "CA1062:Validate arguments of public methods", Justification = "OK.")]
     [SuppressMessage("Design", "CA5404:Do not disable token validation checks", Justification = "OK.")]
-    [SuppressMessage("Usage", "VSTHRD002:Avoid problematic synchronous waits", Justification = "OK.")]
-    public void PostConfigure(string name, JwtBearerOptions options)
+    public void PostConfigure(string? name, JwtBearerOptions options)
     {
         if (apiOptions.Authorization is not null &&
             !apiOptions.Authorization.IsSecurityEnabled())
@@ -93,7 +92,7 @@ public void PostConfigure(string name, JwtBearerOptions options)
         options.TokenValidationParameters.ValidateIssuerSigningKey = options.TokenValidationParameters.IssuerSigningKeys.Any();
     }
 
-    public void PostConfigure(string name, AuthenticationOptions options)
+    public void PostConfigure(string? name, AuthenticationOptions options)
     {
         ArgumentNullException.ThrowIfNull(options);
 
diff --git a/src/Atc.Rest/Models/RequestLogModel.cs b/src/Atc.Rest/Models/RequestLogModel.cs
index ff92c471..f4d59554 100644
--- a/src/Atc.Rest/Models/RequestLogModel.cs
+++ b/src/Atc.Rest/Models/RequestLogModel.cs
@@ -76,7 +76,7 @@ private static Dictionary<string, string> ExtractHeaderParameters(
         var pairs = new Dictionary<string, string>(StringComparer.Ordinal);
         foreach (var header in headers)
         {
-            pairs.Add(header.Key, header.Value);
+            pairs.Add(header.Key, header.Value!);
         }
 
         return pairs;
diff --git a/src/Atc.Rest/Models/ResponseLogModel.cs b/src/Atc.Rest/Models/ResponseLogModel.cs
index 214c078c..59ca70fe 100644
--- a/src/Atc.Rest/Models/ResponseLogModel.cs
+++ b/src/Atc.Rest/Models/ResponseLogModel.cs
@@ -33,7 +33,7 @@ private static Dictionary<string, string> ExtractHeaderParameters(
         var pairs = new Dictionary<string, string>(StringComparer.Ordinal);
         foreach (var header in headers)
         {
-            pairs.Add(header.Key, header.Value);
+            pairs.Add(header.Key, header.Value!);
         }
 
         return pairs;
diff --git a/src/Atc/Atc.csproj b/src/Atc/Atc.csproj
index e04e131a..693f8dfa 100644
--- a/src/Atc/Atc.csproj
+++ b/src/Atc/Atc.csproj
@@ -9,8 +9,8 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Mvc.DataAnnotations" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.0" />
-    <PackageReference Include="System.Text.Json" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
+    <PackageReference Include="System.Text.Json" Version="8.0.3" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Atc/Helpers/CultureHelper.cs b/src/Atc/Helpers/CultureHelper.cs
index 0090e066..1e8b7c03 100644
--- a/src/Atc/Helpers/CultureHelper.cs
+++ b/src/Atc/Helpers/CultureHelper.cs
@@ -8,7 +8,6 @@ namespace Atc.Helpers;
 /// CultureHelper.
 /// </summary>
 [SuppressMessage("Design", "CA1002:Do not expose generic lists", Justification = "OK.")]
-[SuppressMessage("Design", "MA0016:Prefer returning collection abstraction instead of implementation", Justification = "OK.")]
 [SuppressMessage("StyleCop.CSharp.DocumentationRules", "SA1615:Element return value should be documented", Justification = "OK.")]
 public static class CultureHelper
 {