diff --git a/lib/child_process.js b/lib/child_process.js
index 29fece552567a9..40eea9733836d3 100644
--- a/lib/child_process.js
+++ b/lib/child_process.js
@@ -98,7 +98,7 @@ const MAX_BUFFER = 1024 * 1024;
  * @param {{
  *   cwd?: string;
  *   detached?: boolean;
- *   env?: Object;
+ *   env?: object;
  *   execPath?: string;
  *   execArgv?: string[];
  *   gid?: number;
@@ -199,7 +199,7 @@ function normalizeExecArgs(command, options, callback) {
  * @param {string} command
  * @param {{
  *   cmd?: string;
- *   env?: Object;
+ *   env?: object;
  *   encoding?: string;
  *   shell?: string;
  *   signal?: AbortSignal;
@@ -253,7 +253,7 @@ ObjectDefineProperty(exec, promisify.custom, {
  * @param {string[]} [args]
  * @param {{
  *   cwd?: string;
- *   env?: Object;
+ *   env?: object;
  *   encoding?: string;
  *   timeout?: number;
  *   maxBuffer?: number;
@@ -662,7 +662,7 @@ function abortChildProcess(child, killSignal) {
  * @param {string[]} [args]
  * @param {{
  *   cwd?: string;
- *   env?: Object;
+ *   env?: object;
  *   argv0?: string;
  *   stdio?: Array | string;
  *   detached?: boolean;
@@ -735,7 +735,7 @@ function spawn(file, args, options) {
  *   input?: string | Buffer | TypedArray | DataView;
  *   argv0?: string;
  *   stdio?: string | Array;
- *   env?: Object;
+ *   env?: object;
  *   uid?: number;
  *   gid?: number;
  *   timeout?: number;
@@ -827,7 +827,7 @@ function checkExecSyncError(ret, args, cmd) {
  *   cwd?: string;
  *   input?: string | Buffer | TypedArray | DataView;
  *   stdio?: string | Array;
- *   env?: Object;
+ *   env?: object;
  *   uid?: number;
  *   gid?: number;
  *   timeout?: number;
@@ -864,7 +864,7 @@ function execFileSync(command, args, options) {
  *   cwd?: string;
  *   input?: string | Buffer | TypedArray | DataView;
  *   stdio?: string | Array;
- *   env?: Object;
+ *   env?: object;
  *   shell?: string;
  *   uid?: number;
  *   gid?: number;
diff --git a/lib/fs.js b/lib/fs.js
index 611eaaa90c6c9c..2895c11d8ecf1d 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -2876,7 +2876,7 @@ function lazyLoadStreams() {
  *   start: number;
  *   end?: number;
  *   highWaterMark?: number;
- *   fs?: Object | null;
+ *   fs?: object | null;
  *   }} [options]
  * @returns {ReadStream}
  */
@@ -2896,7 +2896,7 @@ function createReadStream(path, options) {
  *   autoClose?: boolean;
  *   emitClose?: boolean;
  *   start: number;
- *   fs?: Object | null;
+ *   fs?: object | null;
  *   }} [options]
  * @returns {WriteStream}
  */
diff --git a/lib/https.js b/lib/https.js
index 7a9a4243aaae14..3834a881775349 100644
--- a/lib/https.js
+++ b/lib/https.js
@@ -362,7 +362,7 @@ function request(...args) {
  *   createConnection?: Function;
  *   defaultPort?: number;
  *   family?: number;
- *   headers?: Object;
+ *   headers?: object;
  *   hints?: number;
  *   host?: string;
  *   hostname?: string;