diff --git a/HelseId.Library.ClientCredentials.Tests/HelseId.Library.ClientCredentials.Tests.csproj b/HelseId.Library.ClientCredentials.Tests/HelseId.Library.ClientCredentials.Tests.csproj
index 085182b..fbefd6d 100644
--- a/HelseId.Library.ClientCredentials.Tests/HelseId.Library.ClientCredentials.Tests.csproj
+++ b/HelseId.Library.ClientCredentials.Tests/HelseId.Library.ClientCredentials.Tests.csproj
@@ -20,7 +20,7 @@
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
-      <PackageReference Include="FluentAssertions" Version="8.8.0" />
+      <PackageReference Include="FluentAssertions" Version="8.9.0" />
       <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.4.0" />
       <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
       <PackageReference Include="NUnit" Version="4.5.1" />
diff --git a/HelseId.Library.SharedTests/HelseId.Library.SharedTests.csproj b/HelseId.Library.SharedTests/HelseId.Library.SharedTests.csproj
index d8368a3..5a82c61 100644
--- a/HelseId.Library.SharedTests/HelseId.Library.SharedTests.csproj
+++ b/HelseId.Library.SharedTests/HelseId.Library.SharedTests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="8.8.0"/>
+    <PackageReference Include="FluentAssertions" Version="8.9.0"/>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.5" />
   </ItemGroup>
 
diff --git a/HelseId.Library.Tests/HelseId.Library.Tests.csproj b/HelseId.Library.Tests/HelseId.Library.Tests.csproj
index 94510fd..605ea4e 100644
--- a/HelseId.Library.Tests/HelseId.Library.Tests.csproj
+++ b/HelseId.Library.Tests/HelseId.Library.Tests.csproj
@@ -15,7 +15,7 @@
           <PrivateAssets>all</PrivateAssets>
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
-        <PackageReference Include="FluentAssertions" Version="8.8.0" />
+        <PackageReference Include="FluentAssertions" Version="8.9.0" />
         <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.4.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
         <PackageReference Include="NUnit" Version="4.5.1" />