diff --git a/backend/tests/PropertyManager.Api.Tests/PropertyManager.Api.Tests.csproj b/backend/tests/PropertyManager.Api.Tests/PropertyManager.Api.Tests.csproj
index d081566..44e3079 100644
--- a/backend/tests/PropertyManager.Api.Tests/PropertyManager.Api.Tests.csproj
+++ b/backend/tests/PropertyManager.Api.Tests/PropertyManager.Api.Tests.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="8.0.0" />
-    <PackageReference Include="FluentAssertions" Version="8.8.0" />
+    <PackageReference Include="FluentAssertions" Version="8.9.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.3" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="10.0.3" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
diff --git a/backend/tests/PropertyManager.Application.Tests/PropertyManager.Application.Tests.csproj b/backend/tests/PropertyManager.Application.Tests/PropertyManager.Application.Tests.csproj
index 8801704..ff1f70c 100644
--- a/backend/tests/PropertyManager.Application.Tests/PropertyManager.Application.Tests.csproj
+++ b/backend/tests/PropertyManager.Application.Tests/PropertyManager.Application.Tests.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="8.0.0" />
-    <PackageReference Include="FluentAssertions" Version="8.8.0" />
+    <PackageReference Include="FluentAssertions" Version="8.9.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageReference Include="MockQueryable.Moq" Version="7.0.3" />
     <PackageReference Include="Moq" Version="4.20.72" />
diff --git a/backend/tests/PropertyManager.Infrastructure.Tests/PropertyManager.Infrastructure.Tests.csproj b/backend/tests/PropertyManager.Infrastructure.Tests/PropertyManager.Infrastructure.Tests.csproj
index c0a5df9..e6472c7 100644
--- a/backend/tests/PropertyManager.Infrastructure.Tests/PropertyManager.Infrastructure.Tests.csproj
+++ b/backend/tests/PropertyManager.Infrastructure.Tests/PropertyManager.Infrastructure.Tests.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="8.0.0" />
-    <PackageReference Include="FluentAssertions" Version="8.8.0" />
+    <PackageReference Include="FluentAssertions" Version="8.9.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.3" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageReference Include="Moq" Version="4.20.72" />