diff --git a/samples/Mistruna.Core.Samples.BasicApi/Mistruna.Core.Samples.BasicApi.csproj b/samples/Mistruna.Core.Samples.BasicApi/Mistruna.Core.Samples.BasicApi.csproj
index 230fcb9..3b249a7 100644
--- a/samples/Mistruna.Core.Samples.BasicApi/Mistruna.Core.Samples.BasicApi.csproj
+++ b/samples/Mistruna.Core.Samples.BasicApi/Mistruna.Core.Samples.BasicApi.csproj
@@ -19,7 +19,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.2" />
-    <PackageReference Include="Microsoft.OpenApi" Version="2.7.5" />
+    <PackageReference Include="Microsoft.OpenApi" Version="3.8.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="10.2.3" />
   </ItemGroup>
 
diff --git a/src/Mistruna.Core/Mistruna.Core.csproj b/src/Mistruna.Core/Mistruna.Core.csproj
index afde98e..90814bc 100644
--- a/src/Mistruna.Core/Mistruna.Core.csproj
+++ b/src/Mistruna.Core/Mistruna.Core.csproj
@@ -31,6 +31,7 @@
         <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="10.0.2" />
         <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.5" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="10.0.5" />
+        <PackageReference Include="Microsoft.OpenApi" Version="3.8.0" />
         <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
         <PackageReference Include="RabbitMQ.Client" Version="6.8.1" />
         <PackageReference Include="Swashbuckle.AspNetCore" Version="10.2.3" />