diff --git a/thorn/thorn.csproj b/thorn/thorn.csproj
index 56df7a4..65c97ea 100644
--- a/thorn/thorn.csproj
+++ b/thorn/thorn.csproj
@@ -16,7 +16,7 @@
         <PackageReference Include="Quartz" Version="3.8.1" />
         <PackageReference Include="Quartz.Extensions.DependencyInjection" Version="3.8.1" />
         <PackageReference Include="Quartz.Extensions.Hosting" Version="3.8.1" />
-        <PackageReference Include="Serilog" Version="3.1.1" />
+        <PackageReference Include="Serilog" Version="4.0.0" />
         <PackageReference Include="Serilog.Extensions.Hosting" Version="8.0.0" />
         <PackageReference Include="Serilog.Sinks.Console" Version="5.0.1" />
         <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />