diff --git a/app.py b/app.py
index a8c30e7..7f84a04 100644
--- a/app.py
+++ b/app.py
@@ -165,7 +165,7 @@ def register():
 
     if user is not None:
         return "User already exists", 409
-
+    
     salt = bcrypt.gensalt()
     hash = bcrypt.hashpw(password.encode("utf-8"), salt)
 
diff --git a/requirements.txt b/requirements.txt
index 20ba510..c9a3b81 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@ Flask==2.0.3
 PyJWT==2.6.0
 pymongo==4.1.1
 python-dotenv==0.21.0
-python_bcrypt==0.3.1
+bcrypt==4.0.1
 dnspython==2.1.0