diff --git a/test/netstd/Client/Client.csproj b/test/netstd/Client/Client.csproj
index 38e455d..ed30c30 100644
--- a/test/netstd/Client/Client.csproj
+++ b/test/netstd/Client/Client.csproj
@@ -31,9 +31,9 @@
     <GenerateAssemblyCopyrightAttribute>false</GenerateAssemblyCopyrightAttribute>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="[4.4,)" />
+    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="4.5.2" />
     <PackageReference Include="System.Runtime.Serialization.Primitives" Version="[4.3,)" />
-    <PackageReference Include="System.ServiceModel.Primitives" Version="[4.4,)" />
+    <PackageReference Include="System.ServiceModel.Primitives" Version="4.5.3" />
     <PackageReference Include="System.Threading" Version="[4.3,)" />
   </ItemGroup>
   <ItemGroup>