diff --git a/lib/data-stream.js b/lib/data-stream.js
index 3535d31..0b4f165 100644
--- a/lib/data-stream.js
+++ b/lib/data-stream.js
@@ -1,7 +1,7 @@
 /*global module, process*/
 var Buffer = require('safe-buffer').Buffer;
-var Stream = require('stream');
-var util = require('util');
+var Stream = require('node:stream');
+var util = require('node:util');
 
 function DataStream(data) {
   this.buffer = null;
diff --git a/lib/sign-stream.js b/lib/sign-stream.js
index 6a7ee42..cd63756 100644
--- a/lib/sign-stream.js
+++ b/lib/sign-stream.js
@@ -2,9 +2,9 @@
 var Buffer = require('safe-buffer').Buffer;
 var DataStream = require('./data-stream');
 var jwa = require('jwa');
-var Stream = require('stream');
+var Stream = require('node:stream');
 var toString = require('./tostring');
-var util = require('util');
+var util = require('node:util');
 
 function base64url(string, encoding) {
   return Buffer
diff --git a/lib/tostring.js b/lib/tostring.js
index f5a49a3..04a2b7a 100644
--- a/lib/tostring.js
+++ b/lib/tostring.js
@@ -1,5 +1,5 @@
 /*global module*/
-var Buffer = require('buffer').Buffer;
+var Buffer = require('node:buffer').Buffer;
 
 module.exports = function toString(obj) {
   if (typeof obj === 'string')
diff --git a/lib/verify-stream.js b/lib/verify-stream.js
index 39f7c73..93f8f6c 100644
--- a/lib/verify-stream.js
+++ b/lib/verify-stream.js
@@ -2,9 +2,9 @@
 var Buffer = require('safe-buffer').Buffer;
 var DataStream = require('./data-stream');
 var jwa = require('jwa');
-var Stream = require('stream');
+var Stream = require('node:stream');
 var toString = require('./tostring');
-var util = require('util');
+var util = require('node:util');
 var JWS_REGEX = /^[a-zA-Z0-9\-_]+?\.[a-zA-Z0-9\-_]+?\.([a-zA-Z0-9\-_]+)?$/;
 
 function isObject(thing) {