diff --git a/samples/aspnet/Elsa.Samples.AspNet.DynamicActivityProvider/Elsa.Samples.AspNet.DynamicActivityProvider.csproj b/samples/aspnet/Elsa.Samples.AspNet.DynamicActivityProvider/Elsa.Samples.AspNet.DynamicActivityProvider.csproj
index 390f36768..13497c81c 100644
--- a/samples/aspnet/Elsa.Samples.AspNet.DynamicActivityProvider/Elsa.Samples.AspNet.DynamicActivityProvider.csproj
+++ b/samples/aspnet/Elsa.Samples.AspNet.DynamicActivityProvider/Elsa.Samples.AspNet.DynamicActivityProvider.csproj
@@ -6,6 +6,7 @@
 
     <ItemGroup>
         <ProjectReference Include="..\..\..\src\bundles\Elsa\Elsa.csproj" />
+        <ProjectReference Include="..\..\..\src\modules\Elsa.EntityFrameworkCore.Sqlite\Elsa.EntityFrameworkCore.Sqlite.csproj" />
         <ProjectReference Include="..\..\..\src\modules\Elsa.Http\Elsa.Http.csproj" />
         <ProjectReference Include="..\..\..\src\modules\Elsa.Identity\Elsa.Identity.csproj" />
         <ProjectReference Include="..\..\..\src\modules\Elsa.JavaScript\Elsa.JavaScript.csproj" />
diff --git a/samples/aspnet/Elsa.Samples.AspNet.DynamicActivityProvider/Program.cs b/samples/aspnet/Elsa.Samples.AspNet.DynamicActivityProvider/Program.cs
index a9d40ff2d..81bae69e4 100644
--- a/samples/aspnet/Elsa.Samples.AspNet.DynamicActivityProvider/Program.cs
+++ b/samples/aspnet/Elsa.Samples.AspNet.DynamicActivityProvider/Program.cs
@@ -22,15 +22,12 @@ services.AddElsa(elsa => elsa
         identity.UseEntityFrameworkCore();
         identity.TokenOptions = options =>
         {
-            options.SigningKey = "secret-token-signing-key";
+            options.SigningKey = "secret-token-signing-key-with-a-minimum-length-of-256-bits";
             options.AccessTokenLifetime = TimeSpan.FromDays(1);
         };
     })
-
-    // HTTP workflows.
+    .UseJavaScript()
     .UseHttp()
-
-    // Use default authentication (JWT).
     .UseDefaultAuthentication(auth => auth.UseAdminApiKey())
 );
 
diff --git a/src/modules/Elsa.Workflows.Management/Services/ExpressionDescriptorRegistry.cs b/src/modules/Elsa.Workflows.Management/Services/ExpressionDescriptorRegistry.cs
index ff181ff10..f8ba229d9 100644
--- a/src/modules/Elsa.Workflows.Management/Services/ExpressionDescriptorRegistry.cs
+++ b/src/modules/Elsa.Workflows.Management/Services/ExpressionDescriptorRegistry.cs
@@ -19,7 +19,10 @@ public class ExpressionDescriptorRegistry : IExpressionDescriptorRegistry
     }
 
     /// <inheritdoc />
-    public void Add(ExpressionDescriptor descriptor) => _expressionSyntaxDescriptors[descriptor.Type] = descriptor;
+    public void Add(ExpressionDescriptor descriptor)
+    {
+        _expressionSyntaxDescriptors[descriptor.Type] = descriptor;
+    }
 
     /// <inheritdoc />
     public void AddRange(IEnumerable<ExpressionDescriptor> descriptors)
@@ -35,5 +38,5 @@ public class ExpressionDescriptorRegistry : IExpressionDescriptorRegistry
     public ExpressionDescriptor? Find(Func<ExpressionDescriptor, bool> predicate) => _expressionSyntaxDescriptors.Values.FirstOrDefault(predicate);
 
     /// <inheritdoc />
-    public ExpressionDescriptor? Find(string type) => _expressionSyntaxDescriptors.TryGetValue(type, out var descriptor) ? descriptor : default!;
+    public ExpressionDescriptor? Find(string type) => _expressionSyntaxDescriptors.TryGetValue(type, out var descriptor) ? descriptor : default;
 }
\ No newline at end of file