diff --git a/backend/requirements.txt b/backend/requirements.txt
index 34d201f..90e2c5c 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -9,3 +9,4 @@ pydantic==2.11.3
 pydantic-settings==2.6.0
 httpx==0.28.1
 cryptography==43.0.0
+email-validator==2.1.1