diff --git a/backend/requirements.txt b/backend/requirements.txt
index da239a9..a9eb205 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -6,7 +6,7 @@
 # Web Framework
 Flask==3.0.3
 Flask-RESTful==0.3.10
-flask-cors==4.0.1
+flask-cors==6.0.0
 
 # Database
 SQLAlchemy==2.0.25
@@ -20,13 +20,13 @@ passlib==1.7.4
 python-dotenv==1.0.1
 
 # Encryption
-cryptography==43.0.1
+cryptography==44.0.1
 
 # Password Validation & Generation
 zxcvbn>=4.4.25
 
 # Validation
-marshmallow==3.20.1
+marshmallow==3.26.2
 email-validator==2.1.0
 
 # Logging & Monitoring
@@ -39,7 +39,7 @@ pytest-cov==4.1.0
 factory-boy==3.3.0
 
 # Production Server
-gunicorn==22.0.0
+gunicorn==25.0.3
 gevent==23.9.1
 
 # Utilities