diff --git a/src/main/java/com/ecwid/maleorang/method/v3_0/lists/members/EditMemberMethod.kt b/src/main/java/com/ecwid/maleorang/method/v3_0/lists/members/EditMemberMethod.kt
index d1737d6..b3e3b73 100644
--- a/src/main/java/com/ecwid/maleorang/method/v3_0/lists/members/EditMemberMethod.kt
+++ b/src/main/java/com/ecwid/maleorang/method/v3_0/lists/members/EditMemberMethod.kt
@@ -51,7 +51,7 @@ sealed class EditMemberMethod : MailchimpMethod<MemberInfo>() {
 
             @JvmField
             @Field
-            val email_address: String
+            var email_address: String
     ) : EditMemberMethod() {
         @JvmField
         @PathParam