diff --git a/tests/GregsStack.VwoEngage.Net.Api.Tests/GregsStack.VwoEngage.Net.Api.Tests.csproj b/tests/GregsStack.VwoEngage.Net.Api.Tests/GregsStack.VwoEngage.Net.Api.Tests.csproj
index ce16744..d773c5d 100644
--- a/tests/GregsStack.VwoEngage.Net.Api.Tests/GregsStack.VwoEngage.Net.Api.Tests.csproj
+++ b/tests/GregsStack.VwoEngage.Net.Api.Tests/GregsStack.VwoEngage.Net.Api.Tests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="altcover" Version="6.1.708" />
+    <PackageReference Include="altcover" Version="8.3.839" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
     <PackageReference Include="xunit" Version="2.4.1" />