diff --git a/tests/GregsStack.InputSimulatorStandard.Tests/GregsStack.InputSimulatorStandard.Tests.csproj b/tests/GregsStack.InputSimulatorStandard.Tests/GregsStack.InputSimulatorStandard.Tests.csproj
index cff0128..1454347 100644
--- a/tests/GregsStack.InputSimulatorStandard.Tests/GregsStack.InputSimulatorStandard.Tests.csproj
+++ b/tests/GregsStack.InputSimulatorStandard.Tests/GregsStack.InputSimulatorStandard.Tests.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="altcover" Version="8.0.815" />
+    <PackageReference Include="altcover" Version="8.6.40" />
     <PackageReference Include="HtmlAgilityPack" Version="1.11.30" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
     <PackageReference Include="Moq" Version="4.16.0" />