diff --git a/README.md b/README.md
index c6d0724d..6b3d2454 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Install the NuGet packages:
 
 ### AsyncAPI.Bindings
 [![Nuget](https://img.shields.io/nuget/v/AsyncAPI.NET.Bindings?label=AsyncAPI.Bindings&style=for-the-badge)](https://www.nuget.org/packages/AsyncAPI.NET.Bindings/)  
-
+[![Nuget](https://img.shields.io/nuget/vpre/AsyncAPI.NET.Bindings?label=AsyncAPI.Bindings-Preview&style=for-the-badge)](https://www.nuget.org/packages/AsyncAPI.NET.Bindings/)  
 ## Example Usage
 
 Main classes to know:
diff --git a/src/LEGO.AsyncAPI.Bindings/Sns/PrincipalObject.cs b/src/LEGO.AsyncAPI.Bindings/Sns/PrincipalObject.cs
index a25c198f..209be8bf 100644
--- a/src/LEGO.AsyncAPI.Bindings/Sns/PrincipalObject.cs
+++ b/src/LEGO.AsyncAPI.Bindings/Sns/PrincipalObject.cs
@@ -6,11 +6,11 @@ namespace LEGO.AsyncAPI.Bindings.Sns;
 
 public class PrincipalObject : Principal
 {
-    private KeyValuePair<string, StringOrStringList> PrincipalValue;
+    public KeyValuePair<string, StringOrStringList> Value { get; private set; }
 
-    public PrincipalObject(KeyValuePair<string, StringOrStringList> principalValue)
+    public PrincipalObject(KeyValuePair<string, StringOrStringList> value)
     {
-        this.PrincipalValue = principalValue;
+        this.Value = value;
     }
 
     public override void Serialize(IAsyncApiWriter writer)
@@ -21,7 +21,7 @@ public override void Serialize(IAsyncApiWriter writer)
         }
 
         writer.WriteStartObject();
-        writer.WriteRequiredObject(this.PrincipalValue.Key, this.PrincipalValue.Value, (w, t) => t.Value.Write(w));
+        writer.WriteRequiredObject(this.Value.Key, this.Value.Value, (w, t) => t.Value.Write(w));
         writer.WriteEndObject();
     }
 }
\ No newline at end of file
diff --git a/src/LEGO.AsyncAPI.Bindings/Sns/PrincipalStar.cs b/src/LEGO.AsyncAPI.Bindings/Sns/PrincipalStar.cs
index 533e9fb7..c885d252 100644
--- a/src/LEGO.AsyncAPI.Bindings/Sns/PrincipalStar.cs
+++ b/src/LEGO.AsyncAPI.Bindings/Sns/PrincipalStar.cs
@@ -5,11 +5,11 @@ namespace LEGO.AsyncAPI.Bindings.Sns;
 
 public class PrincipalStar : Principal
 {
-    private string PrincipalValue;
+    public string Value { get; private set; }
 
     public PrincipalStar()
     {
-        this.PrincipalValue = "*";
+        this.Value = "*";
     }
 
     public override void Serialize(IAsyncApiWriter writer)
@@ -19,6 +19,6 @@ public override void Serialize(IAsyncApiWriter writer)
             throw new ArgumentNullException(nameof(writer));
         }
 
-        writer.WriteValue(this.PrincipalValue);
+        writer.WriteValue(this.Value);
     }
 }
\ No newline at end of file
diff --git a/src/LEGO.AsyncAPI.Bindings/Sqs/PrincipalObject.cs b/src/LEGO.AsyncAPI.Bindings/Sqs/PrincipalObject.cs
index 2652060d..61e6e546 100644
--- a/src/LEGO.AsyncAPI.Bindings/Sqs/PrincipalObject.cs
+++ b/src/LEGO.AsyncAPI.Bindings/Sqs/PrincipalObject.cs
@@ -6,11 +6,11 @@ namespace LEGO.AsyncAPI.Bindings.Sqs;
 
 public class PrincipalObject : Principal
 {
-    private KeyValuePair<string, StringOrStringList> PrincipalValue;
+    public KeyValuePair<string, StringOrStringList> Value { get; private set; }
 
-    public PrincipalObject(KeyValuePair<string, StringOrStringList> principalValue)
+    public PrincipalObject(KeyValuePair<string, StringOrStringList> value)
     {
-        this.PrincipalValue = principalValue;
+        this.Value = value;
     }
 
     public override void Serialize(IAsyncApiWriter writer)
@@ -21,7 +21,7 @@ public override void Serialize(IAsyncApiWriter writer)
         }
 
         writer.WriteStartObject();
-        writer.WriteRequiredObject(this.PrincipalValue.Key, this.PrincipalValue.Value, (w, t) => t.Value.Write(w));
+        writer.WriteRequiredObject(this.Value.Key, this.Value.Value, (w, t) => t.Value.Write(w));
         writer.WriteEndObject();
     }
 }
\ No newline at end of file
diff --git a/src/LEGO.AsyncAPI.Bindings/Sqs/PrincipalStar.cs b/src/LEGO.AsyncAPI.Bindings/Sqs/PrincipalStar.cs
index 9e54bc5a..1705b966 100644
--- a/src/LEGO.AsyncAPI.Bindings/Sqs/PrincipalStar.cs
+++ b/src/LEGO.AsyncAPI.Bindings/Sqs/PrincipalStar.cs
@@ -5,11 +5,11 @@ namespace LEGO.AsyncAPI.Bindings.Sqs;
 
 public class PrincipalStar : Principal
 {
-    private string PrincipalValue;
+    public string Value { get; private set; }
 
     public PrincipalStar()
     {
-        this.PrincipalValue = "*";
+        this.Value = "*";
     }
 
     public override void Serialize(IAsyncApiWriter writer)
@@ -19,6 +19,6 @@ public override void Serialize(IAsyncApiWriter writer)
             throw new ArgumentNullException(nameof(writer));
         }
 
-        writer.WriteValue(this.PrincipalValue);
+        writer.WriteValue(this.Value);
     }
 }
\ No newline at end of file