diff --git a/test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj b/test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj
index 7d346009e..bfcba0163 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj
+++ b/test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj
@@ -243,7 +243,7 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
-        <PackageReference Include="FluentAssertions" Version="6.5.1">
+        <PackageReference Include="FluentAssertions" Version="6.6.0">
         </PackageReference>
         <PackageReference Include="Newtonsoft.Json" Version="13.0.1">
         </PackageReference>
diff --git a/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj b/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
index 5ae43a371..9ba4c4501 100644
--- a/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
+++ b/test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj
@@ -15,7 +15,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="6.5.1" />
+    <PackageReference Include="FluentAssertions" Version="6.6.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
     <PackageReference Include="Moq" Version="4.17.2" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />