diff --git a/csharp/PhoneNumbers.Test/PhoneNumbers.Test.csproj b/csharp/PhoneNumbers.Test/PhoneNumbers.Test.csproj
index 484edc832..c0df42b1e 100644
--- a/csharp/PhoneNumbers.Test/PhoneNumbers.Test.csproj
+++ b/csharp/PhoneNumbers.Test/PhoneNumbers.Test.csproj
@@ -18,7 +18,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
     <PackageReference Include="xunit" Version="2.9.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">