diff --git a/CHANGELOG.md b/CHANGELOG.md
index f27064558..853c11ac3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
 ## [unreleased]
+- fix(standards): Fix NFT impl macros to not import `HashMap` and `near_sdk::json_types::U128`. [PR 571](https://github.com/near/near-sdk-rs/pull/571).
 - Add drain iterator for `near_sdk::store::UnorderedMap`. [PR 613](https://github.com/near/near-sdk-rs/pull/613).
   - Will remove all values and iterate over owned values that were removed
 - Fix codegen for methods inside a `#[near_bindgen]` to allow using `mut self` which will generate the same code as `self` and will not persist state. [PR 616](https://github.com/near/near-sdk-rs/pull/616).
diff --git a/examples/non-fungible-token/nft/src/lib.rs b/examples/non-fungible-token/nft/src/lib.rs
index 527843351..c5892ac3d 100644
--- a/examples/non-fungible-token/nft/src/lib.rs
+++ b/examples/non-fungible-token/nft/src/lib.rs
@@ -115,6 +115,7 @@ impl NonFungibleTokenMetadataProvider for Contract {
 mod tests {
     use near_sdk::test_utils::{accounts, VMContextBuilder};
     use near_sdk::testing_env;
+    use std::collections::HashMap;
 
     use super::*;
 
diff --git a/examples/status-message-collections/src/lib.rs b/examples/status-message-collections/src/lib.rs
index 8d4dd017d..91f6be5d2 100644
--- a/examples/status-message-collections/src/lib.rs
+++ b/examples/status-message-collections/src/lib.rs
@@ -44,7 +44,6 @@ mod tests {
     use super::*;
     use near_sdk::test_utils::VMContextBuilder;
     use near_sdk::{testing_env, VMContext};
-    use std::convert::TryInto;
 
     fn get_context(is_view: bool) -> VMContext {
         VMContextBuilder::new()
diff --git a/near-contract-standards/src/non_fungible_token/macros.rs b/near-contract-standards/src/non_fungible_token/macros.rs
index 3227dfcf6..c6a37a794 100644
--- a/near-contract-standards/src/non_fungible_token/macros.rs
+++ b/near-contract-standards/src/non_fungible_token/macros.rs
@@ -3,7 +3,6 @@
 #[macro_export]
 macro_rules! impl_non_fungible_token_core {
     ($contract: ident, $token: ident) => {
-        use std::collections::HashMap;
         use $crate::non_fungible_token::core::NonFungibleTokenCore;
         use $crate::non_fungible_token::core::NonFungibleTokenResolver;
 
@@ -45,7 +44,7 @@ macro_rules! impl_non_fungible_token_core {
                 previous_owner_id: AccountId,
                 receiver_id: AccountId,
                 token_id: TokenId,
-                approved_account_ids: Option<HashMap<AccountId, u64>>,
+                approved_account_ids: Option<std::collections::HashMap<AccountId, u64>>,
             ) -> bool {
                 self.$token.nft_resolve_transfer(
                     previous_owner_id,
@@ -104,27 +103,30 @@ macro_rules! impl_non_fungible_token_approval {
 #[macro_export]
 macro_rules! impl_non_fungible_token_enumeration {
     ($contract: ident, $token: ident) => {
-        use near_sdk::json_types::U128;
         use $crate::non_fungible_token::enumeration::NonFungibleTokenEnumeration;
 
         #[near_bindgen]
         impl NonFungibleTokenEnumeration for $contract {
-            fn nft_total_supply(&self) -> U128 {
+            fn nft_total_supply(&self) -> near_sdk::json_types::U128 {
                 self.$token.nft_total_supply()
             }
 
-            fn nft_tokens(&self, from_index: Option<U128>, limit: Option<u64>) -> Vec<Token> {
+            fn nft_tokens(
+                &self,
+                from_index: Option<near_sdk::json_types::U128>,
+                limit: Option<u64>,
+            ) -> Vec<Token> {
                 self.$token.nft_tokens(from_index, limit)
             }
 
-            fn nft_supply_for_owner(&self, account_id: AccountId) -> U128 {
+            fn nft_supply_for_owner(&self, account_id: AccountId) -> near_sdk::json_types::U128 {
                 self.$token.nft_supply_for_owner(account_id)
             }
 
             fn nft_tokens_for_owner(
                 &self,
                 account_id: AccountId,
-                from_index: Option<U128>,
+                from_index: Option<near_sdk::json_types::U128>,
                 limit: Option<u64>,
             ) -> Vec<Token> {
                 self.$token.nft_tokens_for_owner(account_id, from_index, limit)