diff --git a/tests/LocalAppVeyor.Engine.UnitTests/LocalAppVeyor.Engine.UnitTests.csproj b/tests/LocalAppVeyor.Engine.UnitTests/LocalAppVeyor.Engine.UnitTests.csproj
index 466b330..7344064 100644
--- a/tests/LocalAppVeyor.Engine.UnitTests/LocalAppVeyor.Engine.UnitTests.csproj
+++ b/tests/LocalAppVeyor.Engine.UnitTests/LocalAppVeyor.Engine.UnitTests.csproj
@@ -10,7 +10,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="20.0.4" />
+    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="21.0.2" />
     <PackageReference Include="xunit" Version="2.6.4" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
       <PrivateAssets>all</PrivateAssets>