diff --git a/test/RestSharp.Tests/RestSharp.Tests.csproj b/test/RestSharp.Tests/RestSharp.Tests.csproj
index c1c122b6a..e17ed1961 100644
--- a/test/RestSharp.Tests/RestSharp.Tests.csproj
+++ b/test/RestSharp.Tests/RestSharp.Tests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
-    <PackageReference Include="Moq" Version="4.17.2" />
+    <PackageReference Include="Moq" Version="4.18.1" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\RestSharp\RestSharp.csproj" />