diff --git a/setup.py b/setup.py
index 1545c6139..768e7562e 100644
--- a/setup.py
+++ b/setup.py
@@ -69,6 +69,7 @@ base = [
     "webrtcvad",
     "yacs~=0.1.8",
     "zhon",
+    "numpy==1.23.5",
 ]
 
 server = ["pattern_singleton", "websockets"]