diff --git a/test/Correlate.Testing/Correlate.Testing.csproj b/test/Correlate.Testing/Correlate.Testing.csproj
index 2f7d860..1d6ccbb 100644
--- a/test/Correlate.Testing/Correlate.Testing.csproj
+++ b/test/Correlate.Testing/Correlate.Testing.csproj
@@ -24,7 +24,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="$(PackageVersion_Microsoft_Extensions)" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="$(PackageVersion_Microsoft_Extensions)" />
-    <PackageReference Include="Serilog" Version="3.1.1" />
+    <PackageReference Include="Serilog" Version="4.0.1" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="$(Serilog_Extensions_Logging)" />
     <PackageReference Include="Serilog.Sinks.TestCorrelator" Version="3.2.0" />
     <PackageReference Include="skwas.MockHttp" Version="4.3.1" />