diff --git a/tests/Serilog.Formatting.Log4Net.Tests.csproj b/tests/Serilog.Formatting.Log4Net.Tests.csproj
index e90c742..639bd88 100644
--- a/tests/Serilog.Formatting.Log4Net.Tests.csproj
+++ b/tests/Serilog.Formatting.Log4Net.Tests.csproj
@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.3" PrivateAssets="all" />
-    <PackageReference Include="FluentAssertions" Version="7.0.0" />
+    <PackageReference Include="FluentAssertions" Version="8.0.0" />
     <PackageReference Include="GitHubActionsTestLogger" Version="2.4.1" PrivateAssets="all" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="PublicApiGenerator" Version="11.3.0" />