diff --git a/src/Serilog.Sinks.Grafana.Loki/Serilog.Sinks.Grafana.Loki.csproj b/src/Serilog.Sinks.Grafana.Loki/Serilog.Sinks.Grafana.Loki.csproj
index 3908a97..6bf9a29 100644
--- a/src/Serilog.Sinks.Grafana.Loki/Serilog.Sinks.Grafana.Loki.csproj
+++ b/src/Serilog.Sinks.Grafana.Loki/Serilog.Sinks.Grafana.Loki.csproj
@@ -24,7 +24,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Serilog" Version="2.12.0" />
+        <PackageReference Include="Serilog" Version="4.0.0" />
         <PackageReference Include="System.Text.Json" Version="4.7.0" />
     </ItemGroup>