diff --git a/requirements.txt b/requirements.txt
index 28635b8..426ee85 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,4 +46,4 @@ fastapi==0.88
 torchfcpe
 ffmpy==0.3.1
 python-dotenv>=1.0.0
-av
+av==9.2.0