diff --git a/requirements.txt b/requirements.txt
index 5f73365..e5706a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,5 +10,5 @@ apscheduler>=3.10
 python-multipart>=0.0.18
 cryptography>=44.0
 passlib[bcrypt]>=1.7
-bcrypt>=4.0,<4.1
+bcrypt>=4.0,<5.1
 itsdangerous>=2.2