diff --git a/lib/assets/Html.js b/lib/assets/Html.js
index b19e4e6ef..aefdf556a 100644
--- a/lib/assets/Html.js
+++ b/lib/assets/Html.js
@@ -4,7 +4,7 @@ const domspace = require('domspace');
 const htmlMinifier = require('html-minifier');
 const errors = require('../errors');
 const Text = require('./Text');
-const mozilla = require('source-map');
+const mozilla = require('source-map-js');
 
 function extractEncodingFromText(text) {
   let metaCharset;
diff --git a/lib/assets/JavaScript.js b/lib/assets/JavaScript.js
index 1a590e92e..6198c1579 100644
--- a/lib/assets/JavaScript.js
+++ b/lib/assets/JavaScript.js
@@ -2,7 +2,7 @@ const escodegen = require('escodegen');
 const estraverse = require('estraverse-fb');
 const esquery = require('esquery');
 const espurify = require('espurify');
-const mozilla = require('source-map');
+const mozilla = require('source-map-js');
 const repeatString = require('repeat-string');
 const errors = require('../errors');
 const Text = require('./Text');
diff --git a/lib/assets/SourceMap.js b/lib/assets/SourceMap.js
index 50390daa7..1523304fd 100644
--- a/lib/assets/SourceMap.js
+++ b/lib/assets/SourceMap.js
@@ -1,6 +1,6 @@
 const errors = require('../errors');
 const Json = require('./Json');
-const mozilla = require('source-map');
+const mozilla = require('source-map-js');
 
 class SourceMap extends Json {
   get parseTree() {
diff --git a/package.json b/package.json
index 960d29ab9..1b9983977 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "schemes": "^1.0.1",
     "semver": "^7.0.0",
     "sift": "^7.0.1",
-    "source-map": "~0.6.1",
+    "source-map-js": "^0.6.2",
     "teepee": "^3.0.0",
     "terser": "^5.0.0",
     "urltools": "^0.4.1"
diff --git a/test/assets/Html.js b/test/assets/Html.js
index 3d36b2371..768df68ac 100644
--- a/test/assets/Html.js
+++ b/test/assets/Html.js
@@ -1,6 +1,6 @@
 const unexpected = require('../unexpected-with-plugins');
 const AssetGraph = require('../../lib/AssetGraph');
-const mozilla = require('source-map');
+const mozilla = require('source-map-js');
 const pathModule = require('path');
 
 function createAsset(inputHtml) {