diff --git a/requirements/server.txt b/requirements/server.txt
index 74be9ea..552bda5 100644
--- a/requirements/server.txt
+++ b/requirements/server.txt
@@ -9,4 +9,5 @@ soundfile
 ffmpeg-python
 scipy
 jiwer
-evaluate
\ No newline at end of file
+evaluate
+numpy<2
\ No newline at end of file
diff --git a/whisper_live/vad.py b/whisper_live/vad.py
index 94e7373..ca870a9 100644
--- a/whisper_live/vad.py
+++ b/whisper_live/vad.py
@@ -94,7 +94,7 @@ class VoiceActivityDetection():
         return stacked.cpu()
 
     @staticmethod
-    def download(model_url="https://github.com/snakers4/silero-vad/raw/master/files/silero_vad.onnx"):
+    def download(model_url="https://github.com/snakers4/silero-vad/raw/v4.0/files/silero_vad.onnx"):
         target_dir = os.path.expanduser("~/.cache/whisper-live/")
 
         # Ensure the target directory exists