diff --git a/BufferList.d.ts b/BufferList.d.ts
index 1561583..4a694ed 100644
--- a/BufferList.d.ts
+++ b/BufferList.d.ts
@@ -205,6 +205,42 @@ interface BufferList {
 
   readFloatLE: Buffer['readFloatLE'];
 
+  /**
+   * All of the standard byte-reading methods of the Buffer interface are implemented and will operate across internal Buffer boundaries transparently.
+   * See the [Buffer](http://nodejs.org/docs/latest/api/buffer.html) documentation for how these work.
+   *
+   * @param offset
+   */
+
+  readBigInt64BE: Buffer['readBigInt64BE'];
+
+  /**
+   * All of the standard byte-reading methods of the Buffer interface are implemented and will operate across internal Buffer boundaries transparently.
+   * See the [Buffer](http://nodejs.org/docs/latest/api/buffer.html) documentation for how these work.
+   *
+   * @param offset
+   */
+
+  readBigInt64LE: Buffer['readBigInt64LE'];
+
+  /**
+   * All of the standard byte-reading methods of the Buffer interface are implemented and will operate across internal Buffer boundaries transparently.
+   * See the [Buffer](http://nodejs.org/docs/latest/api/buffer.html) documentation for how these work.
+   *
+   * @param offset
+   */
+
+  readBigUInt64BE: Buffer['readBigUInt64BE'];
+
+  /**
+   * All of the standard byte-reading methods of the Buffer interface are implemented and will operate across internal Buffer boundaries transparently.
+   * See the [Buffer](http://nodejs.org/docs/latest/api/buffer.html) documentation for how these work.
+   *
+   * @param offset
+   */
+
+  readBigUInt64LE: Buffer['readBigUInt64LE'];
+
   /**
    * All of the standard byte-reading methods of the Buffer interface are implemented and will operate across internal Buffer boundaries transparently.
    * See the [Buffer](http://nodejs.org/docs/latest/api/buffer.html) documentation for how these work.
diff --git a/package.json b/package.json
index 92a08e3..dfdfafe 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "lint": "standard *.js test/*.js",
     "test": "npm run lint && npm run test:types && node test/test.js | faucet",
     "test:ci": "npm run lint && node test/test.js && npm run test:types",
-    "test:types": "tsc --allowJs --noEmit test/test.js",
+    "test:types": "tsc --target esnext --moduleResolution node --allowJs --noEmit test/test.js",
     "build": "true"
   },
   "repository": {