diff --git a/README.md b/README.md
index 662ddd2..67318a7 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ And run `webpack` via your preferred method.
 |            **[`threshold`](#threshold)**            |                `{Number}`                 |                              `0`                              | Only assets bigger than this size are processed (in bytes)                                                    |
 |             **[`minRatio`](#minratio)**             |                `{Number}`                 |                             `0.8`                             | Only assets that compress better than this ratio are processed (`minRatio = Compressed Size / Original Size`) |
 |             **[`filename`](#filename)**             |           `{String\|Function}`            |                       `[path][base].gz`                       | The target asset filename                                                                                     |
-| **[`deleteOriginalAssets`](#deleteoriginalassets)** |                `{Boolean}`                |                            `false`                            | Whether to delete the original assets or not                                                                  |
+| **[`deleteOriginalAssets`](#deleteoriginalassets)** |      `{Boolean\|'keep-source-map'}`       |                            `false`                            | Whether to delete the original assets or not                                                                  |
 |                **[`cache`](#cache)**                |                `{Boolean}`                |                            `true`                             | Enable file caching                                                                                           |
 
 ### `test`
@@ -289,7 +289,7 @@ module.exports = {
 
 ### `deleteOriginalAssets`
 
-Type: `Boolean`
+Type: `Boolean | 'keep-source-map'`
 Default: `false`
 
 Whether to delete the original assets or not.
@@ -306,6 +306,19 @@ module.exports = {
 };
 ```
 
+To exclude sourcemaps from compression
+
+```js
+module.exports = {
+  plugins: [
+    new CompressionPlugin({
+      exclude: /.map$/
+      deleteOriginalAssets: 'keep-source-map',
+    }),
+  ],
+};
+```
+
 ### `cache`
 
 > ⚠ Ignored in webpack 5! Please use https://webpack.js.org/configuration/other-options/#cache.
diff --git a/package-lock.json b/package-lock.json
index 7c6b0ba..6865de5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12402,9 +12402,9 @@
       "dev": true
     },
     "webpack": {
-      "version": "5.3.2",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.3.2.tgz",
-      "integrity": "sha512-DXsfHoI6lQAR3KnQh7+FsRfs9fs+TEvzXCA35UbKv4kVuzslg7QCMAcpFRZNDMjdtm9N/PoO54XEzGN9TeacQg==",
+      "version": "5.4.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.4.0.tgz",
+      "integrity": "sha512-udpYTyqz8toTTdaOsL2QKPLeZLt2IEm9qY7yTXuFEQhKu5bk0yQD9BtAdVQksmz4jFbbWOiWmm3NHarO0zr/ng==",
       "dev": true,
       "requires": {
         "@types/eslint-scope": "^3.7.0",
diff --git a/package.json b/package.json
index d255ff2..255595c 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "npm-run-all": "^4.1.5",
     "prettier": "^2.1.2",
     "standard-version": "^9.0.0",
-    "webpack": "^5.3.2"
+    "webpack": "^5.4.0"
   },
   "keywords": [
     "webpack"
diff --git a/src/index.js b/src/index.js
index 5c8f052..8208985 100644
--- a/src/index.js
+++ b/src/index.js
@@ -299,7 +299,21 @@ class CompressionPlugin {
           }
 
           if (this.options.deleteOriginalAssets) {
-            // eslint-disable-next-line no-param-reassign
+            if (this.options.deleteOriginalAssets === 'keep-source-map') {
+              // TODO `...` required only for webpack@4
+              const updatedAssetInfo = {
+                ...info,
+                related: { ...info.related, sourceMap: null },
+              };
+
+              CompressionPlugin.updateAsset(
+                compilation,
+                name,
+                inputSource,
+                updatedAssetInfo
+              );
+            }
+
             CompressionPlugin.deleteAsset(compilation, name);
           } else {
             // TODO `...` required only for webpack@4
diff --git a/src/options.json b/src/options.json
index 8f28393..303cb5e 100644
--- a/src/options.json
+++ b/src/options.json
@@ -85,7 +85,15 @@
     },
     "deleteOriginalAssets": {
       "description": "Whether to delete the original assets or not.",
-      "type": "boolean"
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "string",
+          "enum": ["keep-source-map"]
+        }
+      ]
     },
     "filename": {
       "description": "The target asset filename.",
diff --git a/test/__snapshots__/CompressionPlugin.test.js.snap.webpack5 b/test/__snapshots__/CompressionPlugin.test.js.snap.webpack5
index 38a7259..63b9f13 100644
--- a/test/__snapshots__/CompressionPlugin.test.js.snap.webpack5
+++ b/test/__snapshots__/CompressionPlugin.test.js.snap.webpack5
@@ -24,11 +24,11 @@ Array [
   ],
   Array [
     "main.js",
-    16407,
+    16408,
   ],
   Array [
     "main.js.gz",
-    3845,
+    3846,
   ],
 ]
 `;
@@ -57,11 +57,11 @@ Array [
   ],
   Array [
     "main.js",
-    16407,
+    16408,
   ],
   Array [
     "main.js.gz",
-    3845,
+    3846,
   ],
 ]
 `;
@@ -97,12 +97,12 @@ Array [
     179,
   ],
   Array [
-    "main.78a615f0242459e9f81e.js",
-    16494,
+    "main.f7eb83969c330f73f483.js",
+    16495,
   ],
   Array [
-    "main.78a615f0242459e9f81e.js.gz",
-    3931,
+    "main.f7eb83969c330f73f483.js.gz",
+    3932,
   ],
 ]
 `;
@@ -135,11 +135,11 @@ Array [
   ],
   Array [
     "main.js",
-    16463,
+    16464,
   ],
   Array [
     "main.js.gz",
-    3910,
+    3911,
   ],
 ]
 `;
@@ -172,11 +172,11 @@ Array [
   ],
   Array [
     "main.js",
-    16447,
+    16448,
   ],
   Array [
     "main.js.gz",
-    3906,
+    3907,
   ],
 ]
 `;
@@ -205,11 +205,11 @@ Array [
   ],
   Array [
     "main.js",
-    16469,
+    16470,
   ],
   Array [
     "main.js.gz",
-    3918,
+    3919,
   ],
 ]
 `;
@@ -266,19 +266,19 @@ Array [
   ],
   Array [
     "main.js",
-    16447,
+    16448,
   ],
   Array [
     "main.js.br",
-    3397,
+    3401,
   ],
   Array [
     "main.js.custom",
-    16447,
+    16448,
   ],
   Array [
     "main.js.gz",
-    3906,
+    3907,
   ],
 ]
 `;
@@ -327,19 +327,19 @@ Array [
   ],
   Array [
     "main.js",
-    16447,
+    16448,
   ],
   Array [
     "main.js.br",
-    3397,
+    3401,
   ],
   Array [
     "main.js.custom",
-    16447,
+    16448,
   ],
   Array [
     "main.js.gz",
-    3906,
+    3907,
   ],
 ]
 `;
@@ -376,11 +376,11 @@ Array [
   ],
   Array [
     "main.js",
-    16447,
+    16448,
   ],
   Array [
     "main.js.gz",
-    3906,
+    3907,
   ],
 ]
 `;
@@ -409,11 +409,11 @@ Array [
   ],
   Array [
     "main.js",
-    16447,
+    16448,
   ],
   Array [
     "main.js.gz",
-    3906,
+    3907,
   ],
 ]
 `;
@@ -449,12 +449,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -482,12 +482,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -542,10 +542,10 @@ Array [
     },
   ],
   Array [
-    "async.async.js?ver=fb923fbfbe1905de10cc",
+    "async.async.js?ver=1bd91a991e7113ab51ef",
     265,
     Object {
-      "fullhash": "fb923fbfbe1905de10cc",
+      "fullhash": "1bd91a991e7113ab51ef",
       "immutable": true,
       "javascriptModule": false,
       "related": Object {
@@ -575,24 +575,24 @@ Array [
   ],
   Array [
     "main.js.gz",
-    3952,
+    3953,
     Object {
       "compressed": true,
       "immutable": true,
-      "size": 3952,
+      "size": 3953,
     },
   ],
   Array [
-    "main.js?var=fb923fbfbe1905de10cc",
-    16650,
+    "main.js?var=1bd91a991e7113ab51ef",
+    16651,
     Object {
-      "fullhash": "fb923fbfbe1905de10cc",
+      "fullhash": "1bd91a991e7113ab51ef",
       "immutable": true,
       "javascriptModule": false,
       "related": Object {
         "gziped": "main.js.gz",
       },
-      "size": 16650,
+      "size": 16651,
     },
   ],
 ]
@@ -644,10 +644,10 @@ Array [
     },
   ],
   Array [
-    "async.async.js?ver=de308cf9f862aae72c20",
+    "async.async.js?ver=6c385e59eb34d690245b",
     265,
     Object {
-      "fullhash": "de308cf9f862aae72c20",
+      "fullhash": "6c385e59eb34d690245b",
       "immutable": true,
       "javascriptModule": false,
       "related": Object {
@@ -677,44 +677,44 @@ Array [
   ],
   Array [
     "main.js.gz",
-    3987,
+    3990,
     Object {
       "compressed": true,
       "immutable": true,
-      "size": 3987,
+      "size": 3990,
     },
   ],
   Array [
     "main.js.map.gz",
-    3960,
+    3962,
     Object {
       "compressed": true,
-      "size": 3960,
+      "size": 3962,
     },
   ],
   Array [
-    "main.js.map?var=de308cf9f862aae72c20",
-    12447,
+    "main.js.map?var=6c385e59eb34d690245b",
+    12453,
     Object {
       "development": true,
       "related": Object {
         "gziped": "main.js.map.gz",
       },
-      "size": 12447,
+      "size": 12453,
     },
   ],
   Array [
-    "main.js?var=de308cf9f862aae72c20",
-    16711,
+    "main.js?var=6c385e59eb34d690245b",
+    16712,
     Object {
-      "fullhash": "de308cf9f862aae72c20",
+      "fullhash": "6c385e59eb34d690245b",
       "immutable": true,
       "javascriptModule": false,
       "related": Object {
         "gziped": "main.js.gz",
-        "sourceMap": "main.js.map?var=de308cf9f862aae72c20",
+        "sourceMap": "main.js.map?var=6c385e59eb34d690245b",
       },
-      "size": 16711,
+      "size": 16712,
     },
   ],
 ]
@@ -845,10 +845,10 @@ Array [
     },
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
     Object {
-      "fullhash": "f7d7a6b10217e2699ecc",
+      "fullhash": "332db2bcb6b6f299224f",
       "immutable": true,
       "javascriptModule": false,
       "related": Object {
@@ -862,45 +862,45 @@ Array [
   ],
   Array [
     "main.js.br",
-    3442,
+    3446,
     Object {
       "compressed": true,
       "immutable": true,
-      "size": 3442,
+      "size": 3446,
     },
   ],
   Array [
     "main.js.compress",
-    16653,
+    16654,
     Object {
       "compressed": true,
       "immutable": true,
-      "size": 16653,
+      "size": 16654,
     },
   ],
   Array [
     "main.js.custom?foo=bar#hash",
-    16653,
+    16654,
     Object {
       "compressed": true,
       "immutable": true,
-      "size": 16653,
+      "size": 16654,
     },
   ],
   Array [
     "main.js.gz",
-    3957,
+    3959,
     Object {
       "compressed": true,
       "immutable": true,
-      "size": 3957,
+      "size": 3959,
     },
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
     Object {
-      "fullhash": "f7d7a6b10217e2699ecc",
+      "fullhash": "332db2bcb6b6f299224f",
       "immutable": true,
       "javascriptModule": false,
       "related": Object {
@@ -909,7 +909,7 @@ Array [
         "customed": "main.js.custom?foo=bar#hash",
         "gziped": "main.js.gz",
       },
-      "size": 16653,
+      "size": 16654,
     },
   ],
 ]
@@ -938,16 +938,16 @@ Array [
     179,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
     "main.js.gz",
-    3957,
+    3959,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
diff --git a/test/__snapshots__/algorithm.test.js.snap.webpack5 b/test/__snapshots__/algorithm.test.js.snap.webpack5
index a8ce411..a422f77 100644
--- a/test/__snapshots__/algorithm.test.js.snap.webpack5
+++ b/test/__snapshots__/algorithm.test.js.snap.webpack5
@@ -27,12 +27,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -70,12 +70,12 @@ Array [
     265,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    16495,
   ],
 ]
 `;
@@ -107,8 +107,8 @@ Array [
     265,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
 ]
 `;
diff --git a/test/__snapshots__/cache-option.test.js.snap.webpack5 b/test/__snapshots__/cache-option.test.js.snap.webpack5
index 73cd31e..4db26be 100644
--- a/test/__snapshots__/cache-option.test.js.snap.webpack5
+++ b/test/__snapshots__/cache-option.test.js.snap.webpack5
@@ -23,12 +23,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -56,12 +56,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -97,12 +97,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -130,12 +130,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -171,12 +171,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -204,12 +204,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -245,12 +245,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -278,12 +278,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
diff --git a/test/__snapshots__/compressionOptions-option.test.js.snap.webpack5 b/test/__snapshots__/compressionOptions-option.test.js.snap.webpack5
index 01ba6bd..c2464d6 100644
--- a/test/__snapshots__/compressionOptions-option.test.js.snap.webpack5
+++ b/test/__snapshots__/compressionOptions-option.test.js.snap.webpack5
@@ -27,12 +27,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -68,12 +68,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -105,12 +105,12 @@ Array [
     146,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3419,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3422,
   ],
 ]
 `;
@@ -142,12 +142,12 @@ Array [
     167,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3921,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3922,
   ],
 ]
 `;
@@ -179,12 +179,12 @@ Array [
     161,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3915,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3916,
   ],
 ]
 `;
@@ -216,12 +216,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
diff --git a/test/__snapshots__/deleteOriginalAssets.test.js.snap.webpack4 b/test/__snapshots__/deleteOriginalAssets.test.js.snap.webpack4
index b822eab..029009c 100644
--- a/test/__snapshots__/deleteOriginalAssets.test.js.snap.webpack4
+++ b/test/__snapshots__/deleteOriginalAssets.test.js.snap.webpack4
@@ -1,5 +1,38 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`"deleteOriginalAssets" option should delete original assets and keep source maps with option 'keep-source-map': assets 1`] = `
+Array [
+  Array [
+    "09a1a1112c577c2794359715edfcb5ac.png",
+    78117,
+  ],
+  Array [
+    "23fc1d3ac606d117e05a140e0de79806.svg",
+    393,
+  ],
+  Array [
+    "async.async.dcbdb1dd40763448b635.js",
+    220,
+  ],
+  Array [
+    "async.async.dcbdb1dd40763448b635.js.map",
+    132,
+  ],
+  Array [
+    "main.82c6786e32f9c77b44ef.js",
+    3044,
+  ],
+  Array [
+    "main.82c6786e32f9c77b44ef.js.map",
+    10291,
+  ],
+]
+`;
+
+exports[`"deleteOriginalAssets" option should delete original assets and keep source maps with option 'keep-source-map': errors 1`] = `Array []`;
+
+exports[`"deleteOriginalAssets" option should delete original assets and keep source maps with option 'keep-source-map': warnings 1`] = `Array []`;
+
 exports[`"deleteOriginalAssets" option should work and delete original assets: assets 1`] = `
 Array [
   Array [
diff --git a/test/__snapshots__/deleteOriginalAssets.test.js.snap.webpack5 b/test/__snapshots__/deleteOriginalAssets.test.js.snap.webpack5
index 4c2564c..1525007 100644
--- a/test/__snapshots__/deleteOriginalAssets.test.js.snap.webpack5
+++ b/test/__snapshots__/deleteOriginalAssets.test.js.snap.webpack5
@@ -1,5 +1,34 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`"deleteOriginalAssets" option should delete original assets and keep source maps with option 'keep-source-map': assets 1`] = `
+Array [
+  Array [
+    "09a1a1112c577c2794359715edfcb5ac.png",
+    78117,
+  ],
+  Array [
+    "23fc1d3ac606d117e05a140e0de79806.svg",
+    393,
+  ],
+  Array [
+    "async.async.1c2911c7c819fc826fb7.js",
+    179,
+  ],
+  Array [
+    "main.6b42eac1865a72d65938.js",
+    3976,
+  ],
+  Array [
+    "main.6b42eac1865a72d65938.js.map",
+    12336,
+  ],
+]
+`;
+
+exports[`"deleteOriginalAssets" option should delete original assets and keep source maps with option 'keep-source-map': errors 1`] = `Array []`;
+
+exports[`"deleteOriginalAssets" option should delete original assets and keep source maps with option 'keep-source-map': warnings 1`] = `Array []`;
+
 exports[`"deleteOriginalAssets" option should work and delete original assets: assets 1`] = `
 Array [
   Array [
@@ -15,8 +44,8 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -40,8 +69,8 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js",
+    3934,
   ],
 ]
 `;
@@ -73,12 +102,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -114,12 +143,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -143,8 +172,8 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js",
+    3934,
   ],
 ]
 `;
@@ -153,7 +182,7 @@ exports[`"deleteOriginalAssets" option should work and report errors on duplicat
 Array [
   "Error: Conflict: Multiple assets emit different content to the same filename 23fc1d3ac606d117e05a140e0de79806.svg",
   "Error: Conflict: Multiple assets emit different content to the same filename async.async.9325220d444b0d653c03.js",
-  "Error: Conflict: Multiple assets emit different content to the same filename main.7cdd8fe3ccdaedc3726c.js",
+  "Error: Conflict: Multiple assets emit different content to the same filename main.c9c6c970f01f9eb6d301.js",
 ]
 `;
 
diff --git a/test/__snapshots__/exclude-option.test.js.snap.webpack5 b/test/__snapshots__/exclude-option.test.js.snap.webpack5
index 333a391..f350511 100644
--- a/test/__snapshots__/exclude-option.test.js.snap.webpack5
+++ b/test/__snapshots__/exclude-option.test.js.snap.webpack5
@@ -19,16 +19,16 @@ Array [
     179,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
     "main.js.gz",
-    3957,
+    3959,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
@@ -52,16 +52,16 @@ Array [
     179,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
     "main.js.gz",
-    3957,
+    3959,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
diff --git a/test/__snapshots__/filename-option.test.js.snap.webpack5 b/test/__snapshots__/filename-option.test.js.snap.webpack5
index 2651c8f..a689143 100644
--- a/test/__snapshots__/filename-option.test.js.snap.webpack5
+++ b/test/__snapshots__/filename-option.test.js.snap.webpack5
@@ -19,20 +19,20 @@ Array [
     672,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
-    "async.async.super-compressed.js.gz?ver=f7d7a6b10217e2699ecc",
+    "async.async.super-compressed.js.gz?ver=332db2bcb6b6f299224f",
     179,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
   Array [
-    "main.super-compressed.js.gz?var=f7d7a6b10217e2699ecc",
-    3957,
+    "main.super-compressed.js.gz?var=332db2bcb6b6f299224f",
+    3959,
   ],
 ]
 `;
@@ -60,20 +60,20 @@ Array [
     393,
   ],
   Array [
-    "assets/js/async.async.js.super-compressed.gz?ver=0a9999404b9f21ff4239#hash",
+    "assets/js/async.async.js.super-compressed.gz?ver=38881eaf41c9852a6e24#hash",
     179,
   ],
   Array [
-    "assets/js/async.async.js?ver=0a9999404b9f21ff4239#hash",
+    "assets/js/async.async.js?ver=38881eaf41c9852a6e24#hash",
     265,
   ],
   Array [
-    "assets/js/main.js.super-compressed.gz?var=0a9999404b9f21ff4239#hash",
-    3975,
+    "assets/js/main.js.super-compressed.gz?var=38881eaf41c9852a6e24#hash",
+    3977,
   ],
   Array [
-    "assets/js/main.js?var=0a9999404b9f21ff4239#hash",
-    16679,
+    "assets/js/main.js?var=38881eaf41c9852a6e24#hash",
+    16680,
   ],
 ]
 `;
@@ -101,20 +101,20 @@ Array [
     393,
   ],
   Array [
-    "async.async.js.gz?ver=8cd45e10c5b13cf32806",
+    "async.async.js.gz?ver=f5ffb51646e417dee948",
     179,
   ],
   Array [
-    "async.async.js?ver=8cd45e10c5b13cf32806#hash",
+    "async.async.js?ver=f5ffb51646e417dee948#hash",
     265,
   ],
   Array [
-    "main.js.gz?var=8cd45e10c5b13cf32806",
-    3962,
+    "main.js.gz?var=f5ffb51646e417dee948",
+    3964,
   ],
   Array [
-    "main.js?var=8cd45e10c5b13cf32806#hash",
-    16658,
+    "main.js?var=f5ffb51646e417dee948#hash",
+    16659,
   ],
 ]
 `;
@@ -146,7 +146,7 @@ Array [
     179,
   ],
   Array [
-    "assets/scripts/async.async.js?ver=cc7401cacdc62b3e8755#hash",
+    "assets/scripts/async.async.js?ver=126e16de36baed6320ff#hash",
     265,
   ],
   Array [
@@ -154,8 +154,8 @@ Array [
     3976,
   ],
   Array [
-    "assets/scripts/main.js?var=cc7401cacdc62b3e8755#hash",
-    16684,
+    "assets/scripts/main.js?var=126e16de36baed6320ff#hash",
+    16685,
   ],
 ]
 `;
diff --git a/test/__snapshots__/include-option.test.js.snap.webpack5 b/test/__snapshots__/include-option.test.js.snap.webpack5
index 27b2611..b684a85 100644
--- a/test/__snapshots__/include-option.test.js.snap.webpack5
+++ b/test/__snapshots__/include-option.test.js.snap.webpack5
@@ -15,16 +15,16 @@ Array [
     179,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
     "main.js.gz",
-    3957,
+    3959,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
@@ -52,16 +52,16 @@ Array [
     179,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
     "main.js.gz",
-    3957,
+    3959,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
diff --git a/test/__snapshots__/minRatio-option.test.js.snap.webpack5 b/test/__snapshots__/minRatio-option.test.js.snap.webpack5
index 4c8e544..9a6d5c0 100644
--- a/test/__snapshots__/minRatio-option.test.js.snap.webpack5
+++ b/test/__snapshots__/minRatio-option.test.js.snap.webpack5
@@ -15,8 +15,8 @@ Array [
     265,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
 ]
 `;
@@ -52,12 +52,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
diff --git a/test/__snapshots__/test-option.test.js.snap.webpack5 b/test/__snapshots__/test-option.test.js.snap.webpack5
index 5129070..6fa8cec 100644
--- a/test/__snapshots__/test-option.test.js.snap.webpack5
+++ b/test/__snapshots__/test-option.test.js.snap.webpack5
@@ -15,12 +15,12 @@ Array [
     672,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
@@ -48,12 +48,12 @@ Array [
     393,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
@@ -85,16 +85,16 @@ Array [
     179,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
     "main.js.gz",
-    3957,
+    3959,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
@@ -114,12 +114,12 @@ Array [
     672,
   ],
   Array [
-    "async.async.js?ver=f7d7a6b10217e2699ecc",
+    "async.async.js?ver=332db2bcb6b6f299224f",
     265,
   ],
   Array [
-    "main.js?var=f7d7a6b10217e2699ecc",
-    16653,
+    "main.js?var=332db2bcb6b6f299224f",
+    16654,
   ],
 ]
 `;
diff --git a/test/__snapshots__/threshold-option.test.js.snap.webpack5 b/test/__snapshots__/threshold-option.test.js.snap.webpack5
index 8b69b0e..2bf4202 100644
--- a/test/__snapshots__/threshold-option.test.js.snap.webpack5
+++ b/test/__snapshots__/threshold-option.test.js.snap.webpack5
@@ -27,12 +27,12 @@ Array [
     179,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -60,12 +60,12 @@ Array [
     265,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js",
-    16494,
+    "main.c9c6c970f01f9eb6d301.js",
+    16495,
   ],
   Array [
-    "main.7cdd8fe3ccdaedc3726c.js.gz",
-    3933,
+    "main.c9c6c970f01f9eb6d301.js.gz",
+    3934,
   ],
 ]
 `;
@@ -81,12 +81,12 @@ Array [
     0,
   ],
   Array [
-    "main.27cbd0a71f6476e80306.js",
-    5896,
+    "main.a175a5dade10e10b9117.js",
+    5897,
   ],
   Array [
-    "main.27cbd0a71f6476e80306.js.gz",
-    1608,
+    "main.a175a5dade10e10b9117.js.gz",
+    1609,
   ],
 ]
 `;
@@ -106,12 +106,12 @@ Array [
     20,
   ],
   Array [
-    "main.27cbd0a71f6476e80306.js",
-    5896,
+    "main.a175a5dade10e10b9117.js",
+    5897,
   ],
   Array [
-    "main.27cbd0a71f6476e80306.js.gz",
-    1608,
+    "main.a175a5dade10e10b9117.js.gz",
+    1609,
   ],
 ]
 `;
diff --git a/test/__snapshots__/validate-options.test.js.snap.webpack4 b/test/__snapshots__/validate-options.test.js.snap.webpack4
index eac0be6..a401952 100644
--- a/test/__snapshots__/validate-options.test.js.snap.webpack4
+++ b/test/__snapshots__/validate-options.test.js.snap.webpack4
@@ -29,8 +29,12 @@ exports[`validate options should throw an error on the "compressionOptions" opti
 
 exports[`validate options should throw an error on the "deleteOriginalAssets" option with "true" value 1`] = `
 "Invalid options object. Compression Plugin has been initialized using an options object that does not match the API schema.
- - options.deleteOriginalAssets should be a boolean.
-   -> Whether to delete the original assets or not."
+ - options.deleteOriginalAssets should be one of these:
+   boolean | \\"keep-source-map\\"
+   -> Whether to delete the original assets or not.
+   Details:
+    * options.deleteOriginalAssets should be a boolean.
+    * options.deleteOriginalAssets should be \\"keep-source-map\\"."
 `;
 
 exports[`validate options should throw an error on the "exclude" option with "[{},"foo",true]" value 1`] = `
diff --git a/test/__snapshots__/validate-options.test.js.snap.webpack5 b/test/__snapshots__/validate-options.test.js.snap.webpack5
index eac0be6..a401952 100644
--- a/test/__snapshots__/validate-options.test.js.snap.webpack5
+++ b/test/__snapshots__/validate-options.test.js.snap.webpack5
@@ -29,8 +29,12 @@ exports[`validate options should throw an error on the "compressionOptions" opti
 
 exports[`validate options should throw an error on the "deleteOriginalAssets" option with "true" value 1`] = `
 "Invalid options object. Compression Plugin has been initialized using an options object that does not match the API schema.
- - options.deleteOriginalAssets should be a boolean.
-   -> Whether to delete the original assets or not."
+ - options.deleteOriginalAssets should be one of these:
+   boolean | \\"keep-source-map\\"
+   -> Whether to delete the original assets or not.
+   Details:
+    * options.deleteOriginalAssets should be a boolean.
+    * options.deleteOriginalAssets should be \\"keep-source-map\\"."
 `;
 
 exports[`validate options should throw an error on the "exclude" option with "[{},"foo",true]" value 1`] = `
diff --git a/test/deleteOriginalAssets.test.js b/test/deleteOriginalAssets.test.js
index e0792e4..242b673 100644
--- a/test/deleteOriginalAssets.test.js
+++ b/test/deleteOriginalAssets.test.js
@@ -84,4 +84,26 @@ describe('"deleteOriginalAssets" option', () => {
     expect(getWarnings(stats)).toMatchSnapshot('warnings');
     expect(getErrors(stats)).toMatchSnapshot('errors');
   });
+
+  it(`should delete original assets and keep source maps with option 'keep-source-map'`, async () => {
+    compiler = getCompiler(
+      './entry.js',
+      {},
+      {
+        devtool: 'source-map',
+      }
+    );
+
+    new CompressionPlugin({
+      filename: '[file]',
+      exclude: /.map$/,
+      deleteOriginalAssets: 'keep-source-map',
+    }).apply(compiler);
+
+    const stats = await compile(compiler);
+
+    expect(getAssetsNameAndSize(stats)).toMatchSnapshot('assets');
+    expect(getWarnings(stats)).toMatchSnapshot('warnings');
+    expect(getErrors(stats)).toMatchSnapshot('errors');
+  });
 });