diff --git a/deps/v8/third_party/inspector_protocol/code_generator.py b/deps/v8/third_party/inspector_protocol/code_generator.py
index 7c72cc70e4fbeb..5cf5a308c5e6a0 100755
--- a/deps/v8/third_party/inspector_protocol/code_generator.py
+++ b/deps/v8/third_party/inspector_protocol/code_generator.py
@@ -43,6 +43,9 @@ def json_object_hook(object_dict):
       items = [(k, os.path.join(output_base, v) if k == "output" else v)
                for (k, v) in items]
       keys, values = list(zip(*items))
+      # 'async' is a keyword since Python 3.7.
+      # Avoid namedtuple(rename=True) for compatibility with Python 2.X.
+      keys = tuple('async_' if k == 'async' else k for k in keys)
       return collections.namedtuple('X', keys)(*values)
     return json.loads(data, object_hook=json_object_hook)
 
@@ -555,7 +558,7 @@ def is_async_command(self, domain, command):
     if not self.config.protocol.options:
       return False
     return self.check_options(self.config.protocol.options, domain, command,
-                              "async", None, False)
+                              "async_", None, False)
 
   def is_exported(self, domain, name):
     if not self.config.protocol.options:
diff --git a/doc/api/esm.md b/doc/api/esm.md
index 20f4330acc96c7..75547159d3a0ae 100644
--- a/doc/api/esm.md
+++ b/doc/api/esm.md
@@ -573,8 +573,14 @@ The resolve hook returns the resolved file URL and module format for a
 given module specifier and parent file URL:
 
 ```js
-const baseURL = new URL(`${process.cwd()}/`, 'file://');
-
+import { URL, pathToFileURL } from 'url';
+const baseURL = pathToFileURL(process.cwd()).href;
+
+/**
+ * @param {string} specifier
+ * @param {string} parentModuleURL
+ * @param {function} defaultResolver
+ */
 export async function resolve(specifier,
                               parentModuleURL = baseURL,
                               defaultResolver) {
@@ -612,13 +618,21 @@ be written:
 import path from 'path';
 import process from 'process';
 import Module from 'module';
+import { URL, pathToFileURL } from 'url';
 
 const builtins = Module.builtinModules;
 const JS_EXTENSIONS = new Set(['.js', '.mjs']);
 
-const baseURL = new URL(`${process.cwd()}/`, 'file://');
+const baseURL = pathToFileURL(process.cwd()).href;
 
-export function resolve(specifier, parentModuleURL = baseURL, defaultResolve) {
+/**
+ * @param {string} specifier
+ * @param {string} parentModuleURL
+ * @param {function} defaultResolver
+ */
+export async function resolve(specifier,
+                              parentModuleURL = baseURL,
+                              defaultResolver) {
   if (builtins.includes(specifier)) {
     return {
       url: specifier,
@@ -627,7 +641,7 @@ export function resolve(specifier, parentModuleURL = baseURL, defaultResolve) {
   }
   if (/^\.{0,2}[/]/.test(specifier) !== true && !specifier.startsWith('file:')) {
     // For node_modules support:
-    // return defaultResolve(specifier, parentModuleURL);
+    // return defaultResolver(specifier, parentModuleURL);
     throw new Error(
       `imports must begin with '/', './', or '../'; '${specifier}' does not`);
   }