diff --git a/traits/gas-tank/src/impl_nonfungibles.rs b/traits/gas-tank/src/impl_nonfungibles.rs
index 23c3556..079bcf3 100644
--- a/traits/gas-tank/src/impl_nonfungibles.rs
+++ b/traits/gas-tank/src/impl_nonfungibles.rs
@@ -1,5 +1,6 @@
+use alloc::boxed::Box;
+use codec::alloc;
 use core::marker::PhantomData;
-
 use frame_support::traits::Get;
 use frame_support::{
     pallet_prelude::{Decode, Encode},