diff --git a/csharp/tutorials/nullable-reference-migration/finished/SimpleFeedReader.Tests/SimpleFeedReader.Tests.csproj b/csharp/tutorials/nullable-reference-migration/finished/SimpleFeedReader.Tests/SimpleFeedReader.Tests.csproj
index 0cc09e8dc2c..3fee93f3020 100644
--- a/csharp/tutorials/nullable-reference-migration/finished/SimpleFeedReader.Tests/SimpleFeedReader.Tests.csproj
+++ b/csharp/tutorials/nullable-reference-migration/finished/SimpleFeedReader.Tests/SimpleFeedReader.Tests.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.0" />
-    <PackageReference Include="Moq" Version="4.14.5" />
+    <PackageReference Include="Moq" Version="4.18.3" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
   </ItemGroup>