diff --git a/src/test/DryFish.ILib.Test.csproj b/src/test/DryFish.ILib.Test.csproj
index 7609c85..d804fbd 100644
--- a/src/test/DryFish.ILib.Test.csproj
+++ b/src/test/DryFish.ILib.Test.csproj
@@ -26,7 +26,7 @@
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net48'">
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
-    <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
+    <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
   </ItemGroup>
 
   <ItemGroup>