diff --git a/backend/requirements.txt b/backend/requirements.txt
index 188a4f3..6f9c145 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -5,6 +5,7 @@ asyncpg==0.29.0
 alembic==1.13.3
 pydantic==2.9.2
 pydantic-settings==2.5.2
+email-validator==2.2.0
 python-jose[cryptography]==3.3.0
 passlib[bcrypt]==1.7.4
 bcrypt==4.0.1