diff --git a/aspire/Kalandra.AppHost/Kalandra.AppHost.csproj b/aspire/Kalandra.AppHost/Kalandra.AppHost.csproj
index 8eecce9f..fa50af59 100644
--- a/aspire/Kalandra.AppHost/Kalandra.AppHost.csproj
+++ b/aspire/Kalandra.AppHost/Kalandra.AppHost.csproj
@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Aspire.Hosting.NodeJs" Version="9.5.2" />
-    <PackageReference Include="Aspire.Hosting.PostgreSQL" Version="13.3.4" />
+    <PackageReference Include="Aspire.Hosting.PostgreSQL" Version="13.3.5" />
   </ItemGroup>
 
   <PropertyGroup>
diff --git a/backend/src/Kalandra.Api/Infrastructure/ServiceCollectionExtensions.cs b/backend/src/Kalandra.Api/Infrastructure/ServiceCollectionExtensions.cs
index 63f28661..52d2c5fb 100644
--- a/backend/src/Kalandra.Api/Infrastructure/ServiceCollectionExtensions.cs
+++ b/backend/src/Kalandra.Api/Infrastructure/ServiceCollectionExtensions.cs
@@ -1,4 +1,5 @@
 using JasperFx;
+using JasperFx.OpenTelemetry;
 using Kalandra.Api.Infrastructure.Auth;
 using Kalandra.Infrastructure.Auth;
 using Kalandra.Infrastructure.Storage;
diff --git a/backend/src/Kalandra.Api/Kalandra.Api.csproj b/backend/src/Kalandra.Api/Kalandra.Api.csproj
index 7fe8f137..d794b418 100644
--- a/backend/src/Kalandra.Api/Kalandra.Api.csproj
+++ b/backend/src/Kalandra.Api/Kalandra.Api.csproj
@@ -18,7 +18,7 @@
     <PackageReference Include="AspNetCore.HealthChecks.UI.Client" Version="9.0.0" />
     <PackageReference Include="Kalicz.StrongTypes" Version="1.1.0" />
     <PackageReference Include="Kalicz.StrongTypes.OpenApi.Swashbuckle" Version="1.1.0" />
-    <PackageReference Include="Marten" Version="8.37.1" />
+    <PackageReference Include="Marten" Version="9.0.2" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.8" />
     <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.3" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.15.3" />
diff --git a/backend/src/Kalandra.JobOffers/Kalandra.JobOffers.csproj b/backend/src/Kalandra.JobOffers/Kalandra.JobOffers.csproj
index b65e8399..9ded1596 100644
--- a/backend/src/Kalandra.JobOffers/Kalandra.JobOffers.csproj
+++ b/backend/src/Kalandra.JobOffers/Kalandra.JobOffers.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Kalicz.StrongTypes" Version="1.1.0" />
-    <PackageReference Include="Marten" Version="8.37.1" />
+    <PackageReference Include="Marten" Version="9.0.2" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/backend/src/Kalandra.JobOffers/MartenConfiguration.cs b/backend/src/Kalandra.JobOffers/MartenConfiguration.cs
index c78658e1..1959574a 100644
--- a/backend/src/Kalandra.JobOffers/MartenConfiguration.cs
+++ b/backend/src/Kalandra.JobOffers/MartenConfiguration.cs
@@ -1,6 +1,6 @@
+using JasperFx.Events.Projections;
 using Kalandra.JobOffers.Entities;
 using Marten;
-using Marten.Events.Projections;
 
 namespace Kalandra.JobOffers;