diff --git a/MathMax.EventSourcing/MathMax.EventSourcing.csproj b/MathMax.EventSourcing/MathMax.EventSourcing.csproj
index 05e7aba..c4e5e67 100644
--- a/MathMax.EventSourcing/MathMax.EventSourcing.csproj
+++ b/MathMax.EventSourcing/MathMax.EventSourcing.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="ByteAether.Ulid" Version="1.2.0" />
+    <PackageReference Include="ByteAether.Ulid" Version="1.3.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.7" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.7" />
   </ItemGroup>