diff --git a/lib/utils/speech-utils.js b/lib/utils/speech-utils.js
index 9867f9e..ff6cee9 100644
--- a/lib/utils/speech-utils.js
+++ b/lib/utils/speech-utils.js
@@ -70,7 +70,9 @@ const testSonioxStt = async(logger, credentials) => {
 
   return new Promise(async(resolve, reject) => {
     try {
-      const result = await soniox.transcribeFileShort('data/test_audio.wav');
+      const result = await soniox.transcribeFileShort('data/test_audio.wav', {
+        model: 'en_v2'
+      });
       if (result.words.length > 0) resolve(result);
       else reject(new Error('no transcript returned'));
     } catch (error) {