diff --git a/testing-unit-cs-mocks/UnitTesting.csproj b/testing-unit-cs-mocks/UnitTesting.csproj
index 805bc1a48..93ac585c4 100644
--- a/testing-unit-cs-mocks/UnitTesting.csproj
+++ b/testing-unit-cs-mocks/UnitTesting.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="8.0.1" />
+    <PackageReference Include="FluentAssertions" Version="8.1.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="NUnit" Version="4.3.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
diff --git a/testing-unit-cs-top-level-program/tests/Tests.csproj b/testing-unit-cs-top-level-program/tests/Tests.csproj
index 17284cf39..c44fd24f0 100644
--- a/testing-unit-cs-top-level-program/tests/Tests.csproj
+++ b/testing-unit-cs-top-level-program/tests/Tests.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="8.0.1" />
+    <PackageReference Include="FluentAssertions" Version="8.1.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="NUnit" Version="4.3.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />
diff --git a/testing-unit-cs/UnitTesting.csproj b/testing-unit-cs/UnitTesting.csproj
index 1b953108f..b8c4d0f4c 100644
--- a/testing-unit-cs/UnitTesting.csproj
+++ b/testing-unit-cs/UnitTesting.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="8.0.1" />
+    <PackageReference Include="FluentAssertions" Version="8.1.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="NUnit" Version="4.3.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="5.0.0" />