diff --git a/ElevenLabs-DotNet/ElevenLabs-DotNet.csproj b/ElevenLabs-DotNet/ElevenLabs-DotNet.csproj
index b567dc1..ac78a03 100644
--- a/ElevenLabs-DotNet/ElevenLabs-DotNet.csproj
+++ b/ElevenLabs-DotNet/ElevenLabs-DotNet.csproj
@@ -14,8 +14,11 @@
     <Company>RageAgainstThePixel</Company>
     <Copyright>2023</Copyright>
     <PackageTags>ElevenLabs, AI, ML, Voice, TTS</PackageTags>
-    <Version>1.3.3</Version>
-    <PackageReleaseNotes>Version 1.3.3
+    <Version>1.3.4</Version>
+    <PackageReleaseNotes>Version 1.3.4
+- Added VoiceSettings setters for convience
+- Added voice validation in tts endpoint
+Version 1.3.3
 - Assign default voice names
 - Get voice details if missing in tts
 Version 1.3.2
diff --git a/ElevenLabs-DotNet/TextToSpeech/TextToSpeechEndpoint.cs b/ElevenLabs-DotNet/TextToSpeech/TextToSpeechEndpoint.cs
index 1ad1e8b..6eda001 100644
--- a/ElevenLabs-DotNet/TextToSpeech/TextToSpeechEndpoint.cs
+++ b/ElevenLabs-DotNet/TextToSpeech/TextToSpeechEndpoint.cs
@@ -39,7 +39,8 @@ public async Task<string> TextToSpeechAsync(string text, Voice voice, VoiceSetti
                 throw new ArgumentOutOfRangeException(nameof(text), $"{nameof(text)} cannot exceed 5000 characters");
             }
 
-            if (voice == null)
+            if (voice == null ||
+                string.IsNullOrWhiteSpace(voice.Id))
             {
                 throw new ArgumentNullException(nameof(voice));
             }
diff --git a/ElevenLabs-DotNet/Voices/VoiceSettings.cs b/ElevenLabs-DotNet/Voices/VoiceSettings.cs
index bc5cfbe..365e483 100644
--- a/ElevenLabs-DotNet/Voices/VoiceSettings.cs
+++ b/ElevenLabs-DotNet/Voices/VoiceSettings.cs
@@ -14,9 +14,9 @@ public VoiceSettings(float stability, float similarityBoost)
         }
 
         [JsonPropertyName("stability")]
-        public float Stability { get; }
+        public float Stability { get; set; }
 
         [JsonPropertyName("similarity_boost")]
-        public float SimilarityBoost { get; }
+        public float SimilarityBoost { get; set; }
     }
 }