diff --git a/backend/requirements.txt b/backend/requirements.txt
index 47b95d0..170b816 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -2,6 +2,7 @@ fastapi[all]
 httpx
 uvicorn[standard]
 passlib[bcrypt]
+bcrypt <5
 psutil
 python-jose[cryptography]
 python-socketio