diff --git a/package.json b/package.json
index 5b37ca4..d4a510b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@dartroom/contracts",
-  "version": "0.2.1-alpha",
+  "version": "0.2.2-alpha",
   "description": "A package that includes all Dartroom's smart contracts written in TEAL, with complete interfaces in TypeScript to interact with them.",
   "main": "dist/index.js",
   "module": "dist/index.mjs",
diff --git a/src/contracts.ts b/src/contracts.ts
index 628051b..eed97ab 100644
--- a/src/contracts.ts
+++ b/src/contracts.ts
@@ -1,10 +1,21 @@
 import { Indexer, Algodv2, BaseHTTPClient, Transaction } from "algosdk"
-import { AlgodTokenHeader, CustomTokenHeader, IndexerTokenHeader } from "algosdk/src/client/urlTokenBaseHTTPClient"
 import { FixedBid } from './interface/fixedBid/index'
 import { RevenueSink } from './interface/acRevenueSink/index'
 import { verifyTxns } from './functions/verify'
 import { TxnFormatter } from "./functions/txn"
 
+export interface AlgodTokenHeader {
+  'X-Algo-API-Token': string;
+}
+
+export interface IndexerTokenHeader {
+  'X-Indexer-API-Token': string;
+}
+
+export interface CustomTokenHeader {
+  [headerName: string]: string;
+}
+
 export interface Provider {
   indexer: Indexer
   algod: Algodv2