diff --git a/src/Volo.Abp.Ddd/Volo/Abp/Domain/Repositories/RepositoryBase.cs b/src/Volo.Abp.Ddd/Volo/Abp/Domain/Repositories/RepositoryBase.cs
index 16afec4f8b..062d130ad0 100644
--- a/src/Volo.Abp.Ddd/Volo/Abp/Domain/Repositories/RepositoryBase.cs
+++ b/src/Volo.Abp.Ddd/Volo/Abp/Domain/Repositories/RepositoryBase.cs
@@ -26,7 +26,7 @@ namespace Volo.Abp.Domain.Repositories
 
         public abstract List<TEntity> GetList();
 
-        public virtual Task<List<TEntity>> GetListAsync(CancellationToken cancellationToken = new CancellationToken())
+        public virtual Task<List<TEntity>> GetListAsync(CancellationToken cancellationToken = default)
         {
             return Task.FromResult(GetList());
         }
diff --git a/src/Volo.Abp.Threading/Volo.Abp.Threading.csproj.DotSettings b/src/Volo.Abp.Threading/Volo.Abp.Threading.csproj.DotSettings
new file mode 100644
index 0000000000..58ad6c8854
--- /dev/null
+++ b/src/Volo.Abp.Threading/Volo.Abp.Threading.csproj.DotSettings
@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/CodeInspection/CSharpLanguageProject/LanguageLevel/@EntryValue">CSharp71</s:String></wpf:ResourceDictionary>
\ No newline at end of file