diff --git a/test/WebService.Tests/WebService.Tests.csproj b/test/WebService.Tests/WebService.Tests.csproj
index 8cd8e64..4d9db64 100644
--- a/test/WebService.Tests/WebService.Tests.csproj
+++ b/test/WebService.Tests/WebService.Tests.csproj
@@ -7,7 +7,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0" />
     <PackageReference Include="System.ServiceModel.Duplex" Version="4.3.0" />
-    <PackageReference Include="System.ServiceModel.Http" Version="4.3.0" />
+    <PackageReference Include="System.ServiceModel.Http" Version="4.3.3" />
     <PackageReference Include="System.ServiceModel.NetTcp" Version="4.3.0" />
     <PackageReference Include="System.ServiceModel.Security" Version="4.3.0" />
     <PackageReference Include="System.Xml.XmlSerializer" Version="4.3.0" />