diff --git a/test/Directory.Build.props b/test/Directory.Build.props
index befebb1ff..85c69201f 100644
--- a/test/Directory.Build.props
+++ b/test/Directory.Build.props
@@ -12,7 +12,7 @@
     <PackageReference Include="NUnit" Version="3.13.*"/>
     <PackageReference Include="NUnit3TestAdapter" Version="4.0.0"/>
     <PackageReference Include="AutoFixture" Version="4.17.0"/>
-    <PackageReference Include="FluentAssertions" Version="5.10.3"/>
+    <PackageReference Include="FluentAssertions" Version="6.9.0"/>
     <PackageReference Include="coverlet.collector" Version="3.0.3"/>
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.2" PrivateAssets="All" />
   </ItemGroup>