diff --git a/package.json b/package.json
index b791c6a..048a4cc 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "node": ">=10.15.1"
   },
   "dependencies": {
-    "@psf/bch-js": "^4.15.18",
+    "@psf/bch-js": "^4.15.19",
     "apidoc": "^0.26.0",
     "axios": "^0.21.1",
     "bitcore-lib-cash": "^8.23.1",
diff --git a/test/v4/rate-limits.js b/test/v4/rate-limits.js
index f2f95bd..b88809b 100644
--- a/test/v4/rate-limits.js
+++ b/test/v4/rate-limits.js
@@ -2,7 +2,6 @@
 
 const chai = require('chai')
 const assert = chai.assert
-// const nock = require('nock') // HTTP mocking
 const sinon = require('sinon')
 
 // Used for debugging.