diff --git a/ElevenLabs/Packages/com.rest.elevenlabs/Runtime/TextToSpeech/TextToSpeechRequest.cs b/ElevenLabs/Packages/com.rest.elevenlabs/Runtime/TextToSpeech/TextToSpeechRequest.cs
index 0beb36f..36fb321 100644
--- a/ElevenLabs/Packages/com.rest.elevenlabs/Runtime/TextToSpeech/TextToSpeechRequest.cs
+++ b/ElevenLabs/Packages/com.rest.elevenlabs/Runtime/TextToSpeech/TextToSpeechRequest.cs
@@ -21,7 +21,10 @@ public TextToSpeechRequest(
             OutputFormat outputFormat = OutputFormat.MP3_44100_128,
             int? optimizeStreamingLatency = null,
             Model model = null,
-            string previousText = null)
+            string previousText = null,
+            string nextText = null,
+            string[] previousRequestIds = null,
+            string[] nextRequestIds = null)
         {
             if (string.IsNullOrWhiteSpace(text))
             {
@@ -48,9 +51,12 @@ public TextToSpeechRequest(
             Model = model ?? Models.Model.MultiLingualV2;
             Voice = voice;
             VoiceSettings = voiceSettings ?? voice.Settings ?? throw new ArgumentNullException(nameof(voiceSettings));
-            PreviousText = previousText;
             OutputFormat = outputFormat;
             OptimizeStreamingLatency = optimizeStreamingLatency;
+            PreviousText = previousText;
+            NextText = nextText;
+            PreviousRequestIds = previousRequestIds;
+            NextRequestIds = nextRequestIds;
         }
 
         [Preserve]
@@ -69,10 +75,6 @@ public TextToSpeechRequest(
         [JsonProperty("voice_settings")]
         public VoiceSettings VoiceSettings { get; internal set; }
 
-        [Preserve]
-        [JsonProperty("previous_text")]
-        public string PreviousText { get; }
-
         [Preserve]
         [JsonIgnore]
         public OutputFormat OutputFormat { get; }
@@ -80,5 +82,23 @@ public TextToSpeechRequest(
         [Preserve]
         [JsonIgnore]
         public int? OptimizeStreamingLatency { get; }
+
+        [Preserve]
+        [JsonProperty("previous_text")]
+        public string PreviousText { get; }
+
+        [Preserve]
+        [JsonProperty("next_text")]
+        public string NextText { get; }
+
+        [Preserve]
+        [JsonProperty("previous_request_ids")]
+        // Note: A maximum of three next or previous history item ids can be sent
+        public string[] PreviousRequestIds { get; }
+
+        [Preserve]
+        [JsonProperty("next_request_ids")]
+        // Note: A maximum of three next or previous history item ids can be sent
+        public string[] NextRequestIds { get; }
     }
 }