diff --git a/src/Refitter.Tests/Refitter.Tests.csproj b/src/Refitter.Tests/Refitter.Tests.csproj
index 0beac50f..7654f99c 100644
--- a/src/Refitter.Tests/Refitter.Tests.csproj
+++ b/src/Refitter.Tests/Refitter.Tests.csproj
@@ -14,7 +14,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="Atc.Test" Version="1.1.4" />
+        <PackageReference Include="Atc.Test" Version="1.1.9" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
         <PackageReference Include="xunit" Version="2.9.2" />
         <PackageReference Include="xunit.runner.visualstudio" Version="3.0.0">