diff --git a/Tests.Unit/Tests.Unit.csproj b/Tests.Unit/Tests.Unit.csproj
index abfe5aa6b..05ac2d81b 100644
--- a/Tests.Unit/Tests.Unit.csproj
+++ b/Tests.Unit/Tests.Unit.csproj
@@ -19,7 +19,7 @@
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     <PackageReference Include="Microsoft.VisualStudio.TestPlatform.ObjectModel" Version="14.0.0" />   
-    <PackageReference Include="Moq" Version="4.18.1" />
+    <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="morelinq" Version="3.3.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
     <PackageReference Include="xunit" Version="2.4.2" />