diff --git a/Microsoft.DependencyInjection.SolrNet.Tests/Microsoft.DependencyInjection.SolrNet.Tests.csproj b/Microsoft.DependencyInjection.SolrNet.Tests/Microsoft.DependencyInjection.SolrNet.Tests.csproj
index 8cbd511d2..634454da2 100644
--- a/Microsoft.DependencyInjection.SolrNet.Tests/Microsoft.DependencyInjection.SolrNet.Tests.csproj
+++ b/Microsoft.DependencyInjection.SolrNet.Tests/Microsoft.DependencyInjection.SolrNet.Tests.csproj
@@ -4,7 +4,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0" />
-    <PackageReference Include="System.Net.Http" Version="4.0.0" />
+    <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.0.0" />