diff --git a/GoCardless.Tests/GoCardless.Tests.csproj b/GoCardless.Tests/GoCardless.Tests.csproj
index 0f7a04c..f74b95a 100644
--- a/GoCardless.Tests/GoCardless.Tests.csproj
+++ b/GoCardless.Tests/GoCardless.Tests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFrameworks>netcoreapp2.1</TargetFrameworks>
@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="FluentAssertions" Version="4.19.2" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="NUnit" Version="3.7.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.8.0-alpha1" />
   </ItemGroup>