diff --git a/backend/python/openvoice/requirements.txt b/backend/python/openvoice/requirements.txt
index a6628cdbbaf..ff463748d46 100644
--- a/backend/python/openvoice/requirements.txt
+++ b/backend/python/openvoice/requirements.txt
@@ -4,7 +4,7 @@ librosa
 faster-whisper
 pydub==0.25.1
 wavmark==0.0.3
-numpy
+numpy==1.22.0
 eng_to_ipa==0.0.2
 inflect
 unidecode