diff --git a/package.json b/package.json
index 8675c97..d37073f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "assemblyai",
-  "version": "4.18.0",
+  "version": "4.18.1",
   "description": "The AssemblyAI JavaScript SDK provides an easy-to-use interface for interacting with the AssemblyAI API, which supports async and real-time transcription, as well as the latest LeMUR models.",
   "engines": {
     "node": ">=18"
diff --git a/src/types/openapi.generated.ts b/src/types/openapi.generated.ts
index fc270cd..5e97f29 100644
--- a/src/types/openapi.generated.ts
+++ b/src/types/openapi.generated.ts
@@ -2551,6 +2551,10 @@ export type Transcript = {
    * The confidence score for the detected language, between 0.0 (low confidence) and 1.0 (high confidence)
    */
   language_confidence: number | null;
+  /**
+   * List of language codes detected in the audio file when language detection is enabled
+   */
+  language_codes: LiteralUnion<TranscriptLanguageCode, string>[] | null;
   /**
    * The confidence threshold for the automatically detected language.
    * An error will be returned if the language confidence is below this threshold.