diff --git a/Cleipnir.Flows.Tests.AspNet/Cleipnir.Flows.Tests.AspNet.csproj b/Cleipnir.Flows.Tests.AspNet/Cleipnir.Flows.Tests.AspNet.csproj
index bd37c4b..dc001a2 100644
--- a/Cleipnir.Flows.Tests.AspNet/Cleipnir.Flows.Tests.AspNet.csproj
+++ b/Cleipnir.Flows.Tests.AspNet/Cleipnir.Flows.Tests.AspNet.csproj
@@ -16,7 +16,7 @@
           <PrivateAssets>all</PrivateAssets>
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
-        <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.8" />
+        <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.0" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/Samples/Cleipnir.Flows.Sample.AspNet/Cleipnir.Flows.Sample.AspNet.csproj b/Samples/Cleipnir.Flows.Sample.AspNet/Cleipnir.Flows.Sample.AspNet.csproj
index 05189b5..545741a 100644
--- a/Samples/Cleipnir.Flows.Sample.AspNet/Cleipnir.Flows.Sample.AspNet.csproj
+++ b/Samples/Cleipnir.Flows.Sample.AspNet/Cleipnir.Flows.Sample.AspNet.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.8" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.0" />
     <PackageReference Include="Serilog.AspNetCore" Version="8.0.2" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.8.0" />
   </ItemGroup>
diff --git a/Samples/Cleipnir.Flows.Sample.Presentation.AspNet/Cleipnir.Flows.Sample.Presentation.AspNet.csproj b/Samples/Cleipnir.Flows.Sample.Presentation.AspNet/Cleipnir.Flows.Sample.Presentation.AspNet.csproj
index 9a95303..8dbaaf5 100644
--- a/Samples/Cleipnir.Flows.Sample.Presentation.AspNet/Cleipnir.Flows.Sample.Presentation.AspNet.csproj
+++ b/Samples/Cleipnir.Flows.Sample.Presentation.AspNet/Cleipnir.Flows.Sample.Presentation.AspNet.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.8" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.0" />
     <PackageReference Include="Polly.Core" Version="8.5.0" />
     <PackageReference Include="Serilog.AspNetCore" Version="8.0.2" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.8.0" />