diff --git a/lib/map-generator.js b/lib/map-generator.js
index e9afd39b1..a86cc67a0 100644
--- a/lib/map-generator.js
+++ b/lib/map-generator.js
@@ -1,8 +1,8 @@
 'use strict'
 
+let { SourceMapConsumer, SourceMapGenerator } = require('source-map-js')
 let { dirname, resolve, relative, sep } = require('path')
 let { pathToFileURL } = require('url')
-let { SourceMapConsumer, SourceMapGenerator } = require('source-map')
 
 let sourceMapAvailable = Boolean(SourceMapConsumer && SourceMapGenerator)
 let pathAvailable = Boolean(dirname && resolve && relative && sep)
diff --git a/lib/postcss.d.ts b/lib/postcss.d.ts
index dd1f116a9..6e0f16dd8 100644
--- a/lib/postcss.d.ts
+++ b/lib/postcss.d.ts
@@ -1,4 +1,4 @@
-import { SourceMapGenerator, RawSourceMap } from 'source-map'
+import { SourceMapGenerator, RawSourceMap } from 'source-map-js'
 
 import Node, {
   Position,
diff --git a/lib/previous-map.d.ts b/lib/previous-map.d.ts
index 053691942..490d885fa 100644
--- a/lib/previous-map.d.ts
+++ b/lib/previous-map.d.ts
@@ -1,4 +1,4 @@
-import { SourceMapConsumer } from 'source-map'
+import { SourceMapConsumer } from 'source-map-js'
 
 import { ProcessOptions } from './postcss.js'
 
diff --git a/lib/previous-map.js b/lib/previous-map.js
index 7269c27db..fb634deff 100644
--- a/lib/previous-map.js
+++ b/lib/previous-map.js
@@ -1,8 +1,8 @@
 'use strict'
 
+let { SourceMapConsumer, SourceMapGenerator } = require('source-map-js')
 let { existsSync, readFileSync } = require('fs')
 let { dirname, join } = require('path')
-let { SourceMapConsumer, SourceMapGenerator } = require('source-map')
 
 function fromBase64(str) {
   if (Buffer) {
diff --git a/package.json b/package.json
index f45f10a4f..751544892 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
   "dependencies": {
     "colorette": "^1.2.2",
     "nanoid": "^3.1.23",
-    "source-map": "^0.6.1"
+    "source-map-js": "^0.6.2"
   },
   "devDependencies": {
     "@logux/eslint-config": "^45.4.3",
diff --git a/test/lazy-result.test.ts b/test/lazy-result.test.ts
index 50af1de9f..ac7042bbb 100644
--- a/test/lazy-result.test.ts
+++ b/test/lazy-result.test.ts
@@ -1,4 +1,4 @@
-import mozilla from 'source-map'
+import mozilla from 'source-map-js'
 
 import LazyResult from '../lib/lazy-result.js'
 import Processor from '../lib/processor.js'
diff --git a/test/map.test.ts b/test/map.test.ts
index b7a065c91..6c0a57c7c 100644
--- a/test/map.test.ts
+++ b/test/map.test.ts
@@ -1,4 +1,4 @@
-import { SourceMapConsumer, SourceMapGenerator } from 'source-map'
+import { SourceMapConsumer, SourceMapGenerator } from 'source-map-js'
 import { removeSync, outputFileSync } from 'fs-extra'
 import { join, resolve, parse } from 'path'
 import { existsSync } from 'fs'
diff --git a/test/previous-map.test.ts b/test/previous-map.test.ts
index 585253d43..dff70a29f 100644
--- a/test/previous-map.test.ts
+++ b/test/previous-map.test.ts
@@ -1,5 +1,5 @@
 import { removeSync, outputFileSync } from 'fs-extra'
-import { SourceMapConsumer } from 'source-map'
+import { SourceMapConsumer } from 'source-map-js'
 import { pathToFileURL } from 'url'
 import { existsSync } from 'fs'
 import { join } from 'path'
diff --git a/yarn.lock b/yarn.lock
index f03e52677..e807d520c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6574,6 +6574,11 @@ source-list-map@^2.0.0:
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
   integrity sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==
 
+source-map-js@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-0.6.2.tgz#0bb5de631b41cfbda6cfba8bd05a80efdfd2385e"
+  integrity sha512-/3GptzWzu0+0MBQFrDKzw/DvvMTUORvgY6k6jd/VS6iCR4RDTKWH6v6WPwQoUO8667uQEf9Oe38DxAYWY5F/Ug==
+
 source-map-resolve@^0.5.0:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.3.tgz#190866bece7553e1f8f267a2ee82c606b5509a1a"