diff --git a/test/Microsoft.OpenApi.Hidi.Tests/Microsoft.OpenApi.Hidi.Tests.csproj b/test/Microsoft.OpenApi.Hidi.Tests/Microsoft.OpenApi.Hidi.Tests.csproj
index c32c062b1..cd5f77b4b 100644
--- a/test/Microsoft.OpenApi.Hidi.Tests/Microsoft.OpenApi.Hidi.Tests.csproj
+++ b/test/Microsoft.OpenApi.Hidi.Tests/Microsoft.OpenApi.Hidi.Tests.csproj
@@ -14,7 +14,7 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.0" />
-    <PackageReference Include="Moq" Version="4.18.4" />
+    <PackageReference Include="Moq" Version="4.20.1" />
     <PackageReference Include="xunit" Version="2.5.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj b/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
index 15a1f5ad3..41a4c6283 100644
--- a/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
+++ b/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
@@ -25,7 +25,7 @@
     </PackageReference>
     <PackageReference Include="FluentAssertions" Version="6.11.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.0" />
-    <PackageReference Include="Moq" Version="4.18.4" />
+    <PackageReference Include="Moq" Version="4.20.1" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="SharpYaml" Version="2.1.0" />
     <PackageReference Include="Verify.Xunit" Version="20.6.0" />