diff --git a/bin/build-module.js b/bin/build-module.js
index d77952d6d5..edd10dcf2b 100755
--- a/bin/build-module.js
+++ b/bin/build-module.js
@@ -14,7 +14,7 @@ var rollupPlugins = require('./rollupPlugins');
 
 var path = require('path');
 var denodeify = require('denodeify');
-const { mkdirSync } = require('fs');
+const { mkdir } = require('node:fs/promises');
 var rimraf = denodeify(require('rimraf'));
 var builtInModules = require('builtin-modules');
 var fs = require('fs');
@@ -67,7 +67,8 @@ function buildModule(filepath) {
   return Promise.resolve().then(function () {
     return rimraf(path.resolve(filepath, 'lib'));
   }).then(function () {
-    mkdirSync(path.resolve(filepath, 'lib'), { recursive:true });
+    return mkdir(path.resolve(filepath, 'lib'), { recursive:true });
+  }).then(function () {
     return all(versions.map(function (isBrowser) {
       return rollup({
         input: path.resolve(filepath, './src/index.js'),
diff --git a/bin/build-pouchdb.js b/bin/build-pouchdb.js
index a81cfed214..94fbfddc80 100755
--- a/bin/build-pouchdb.js
+++ b/bin/build-pouchdb.js
@@ -12,7 +12,7 @@ var denodeify = require('denodeify');
 var rollup = require('rollup');
 var rollupPlugins = require('./rollupPlugins');
 var rimraf = denodeify(require('rimraf'));
-const { mkdirSync } = require('fs');
+const { mkdir } = require('node:fs/promises');
 var all = Promise.all.bind(Promise);
 var buildUtils = require('./build-utils');
 var addPath = buildUtils.addPath;
@@ -150,7 +150,9 @@ var rimrafMkdirp = function (...args) {
   return all(args.map(function (otherPath) {
     return rimraf(addPath('pouchdb', otherPath));
   })).then(function () {
-    args.map(otherPath => mkdirSync(addPath('pouchdb', otherPath), { recursive:true }));
+    return all(args.map(function (otherPath) {
+      return mkdir(addPath('pouchdb', otherPath), { recursive:true });
+    }));
   });
 };
 
@@ -163,8 +165,8 @@ var doAll = function (...args) {
 };
 
 function doBuildNode() {
-  mkdirSync(addPath('pouchdb', 'lib/plugins'), { recursive:true });
-  return buildForNode();
+  return mkdir(addPath('pouchdb', 'lib/plugins'), { recursive:true })
+    .then(buildForNode);
 }
 
 function doBuildAll() {