diff --git a/test/MongoDB.Messaging.Tests/MongoDB.Messaging.Tests.csproj b/test/MongoDB.Messaging.Tests/MongoDB.Messaging.Tests.csproj
index 4cdd624..d8125ec 100644
--- a/test/MongoDB.Messaging.Tests/MongoDB.Messaging.Tests.csproj
+++ b/test/MongoDB.Messaging.Tests/MongoDB.Messaging.Tests.csproj
@@ -30,7 +30,7 @@
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
     <PackageReference Include="System.ComponentModel" Version="4.0.1" />
-    <PackageReference Include="System.Runtime" Version="4.1.0" />
+    <PackageReference Include="System.Runtime" Version="4.3.1" />
     <PackageReference Include="System.Threading.Thread" Version="4.0.0" />
   </ItemGroup>