diff --git a/test/Cnblogs.DashScope.Sdk.UnitTests/Cnblogs.DashScope.Sdk.UnitTests.csproj b/test/Cnblogs.DashScope.Sdk.UnitTests/Cnblogs.DashScope.Sdk.UnitTests.csproj
index 793f4d2..36f19a0 100644
--- a/test/Cnblogs.DashScope.Sdk.UnitTests/Cnblogs.DashScope.Sdk.UnitTests.csproj
+++ b/test/Cnblogs.DashScope.Sdk.UnitTests/Cnblogs.DashScope.Sdk.UnitTests.csproj
@@ -12,7 +12,7 @@
         </PackageReference>
         <PackageReference Include="FluentAssertions" Version="6.12.1" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-        <PackageReference Include="NSubstitute" Version="5.1.0" />
+        <PackageReference Include="NSubstitute" Version="5.3.0" />
         <PackageReference Include="System.Linq.Async" Version="6.0.1" />
         <PackageReference Include="xunit" Version="2.9.2" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">