diff --git a/tests/MongoFramework.Tests/MongoFramework.Tests.csproj b/tests/MongoFramework.Tests/MongoFramework.Tests.csproj
index 553527c8..f9f9ad9d 100644
--- a/tests/MongoFramework.Tests/MongoFramework.Tests.csproj
+++ b/tests/MongoFramework.Tests/MongoFramework.Tests.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="Moq" Version="4.18.3" />
+    <PackageReference Include="Moq" Version="4.21.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.1" />
     <PackageReference Include="MSTest.TestFramework" Version="3.0.1" />
     <PackageReference Include="coverlet.collector" Version="3.2.0">