diff --git a/handlers/type.go b/handlers/type.go
index 41c83f5..be5fd06 100644
--- a/handlers/type.go
+++ b/handlers/type.go
@@ -4,14 +4,14 @@
 package handlers
 
 type userSignin struct {
-	Username string `form:"username" json:"username"`
-	Password string `form:"password" json:"password"`
+	Username string `form:"username" json:"username" validate:"required,username"`
+	Password string `form:"password" json:"password" validate:"required,password"`
 }
 
 type userSignup struct {
-	Username string `form:"username" json:"username"`
-	Email    string `form:"email" json:"email"`
-	Password string `form:"password" json:"password"`
+	Username string `form:"username" json:"username" validate:"required,username"`
+	Email    string `form:"email" json:"email" validate:"required,email"`
+	Password string `form:"password" json:"password" validate:"required,password"`
 }
 
 type userCreate struct {