diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index c8f9f37c..1deaa3b6 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -56,7 +56,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
         node-version: [10.x, 12.x, 14.x]
-        webpack-version: [4, latest]
+        webpack-version: [latest]
 
     runs-on: ${{ matrix.os }}
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ab1f6af..036fdaf9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [5.0.0](https://github.com/webpack-contrib/postcss-loader/compare/v4.2.0...v5.0.0) (2021-02-02)
+
+
+### ⚠ BREAKING CHANGES
+
+* minimum supported `webpack` version is `5`
+
 ## [4.2.0](https://github.com/webpack-contrib/postcss-loader/compare/v4.1.0...v4.2.0) (2021-01-21)
 
 
diff --git a/package-lock.json b/package-lock.json
index 26014202..4ff52c3d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "postcss-loader",
-  "version": "4.2.0",
+  "version": "5.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2278,9 +2278,9 @@
       }
     },
     "@types/estree": {
-      "version": "0.0.45",
-      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.45.tgz",
-      "integrity": "sha512-jnqIUKDUqJbDIUxm0Uj7bnlMnRm1T/eZ9N+AVMqhPgzrba2GhGG5o/jCTwmdPK709nEZsGoMzXEDUjcXHa3W0g==",
+      "version": "0.0.46",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.46.tgz",
+      "integrity": "sha512-laIjwTQaD+5DukBZaygQ79K1Z0jb1bPEMRrkXSLjtCcZm+abyp5YbrqpSLzD42FwWW6gK/aS4NYpJ804nG2brg==",
       "dev": true
     },
     "@types/glob": {
@@ -2329,7 +2329,8 @@
     "@types/json-schema": {
       "version": "7.0.7",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.7.tgz",
-      "integrity": "sha512-cxWFQVseBm6O9Gbw1IWb8r6OS4OhSt3hPZLkFApLjM8TEXROBuQGLAH2i2gZpcXdLBIrpXuTDhH7Vbm1iXmNGA=="
+      "integrity": "sha512-cxWFQVseBm6O9Gbw1IWb8r6OS4OhSt3hPZLkFApLjM8TEXROBuQGLAH2i2gZpcXdLBIrpXuTDhH7Vbm1iXmNGA==",
+      "dev": true
     },
     "@types/json5": {
       "version": "0.0.29",
@@ -2385,9 +2386,9 @@
       "dev": true
     },
     "@types/yargs": {
-      "version": "15.0.12",
-      "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-15.0.12.tgz",
-      "integrity": "sha512-f+fD/fQAo3BCbCDlrUpznF1A5Zp9rB0noS5vnoormHSIPFKL0Z2DcUJ3Gxp5ytH4uLRNxy7AwYUC9exZzqGMAw==",
+      "version": "15.0.13",
+      "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-15.0.13.tgz",
+      "integrity": "sha512-kQ5JNTrbDv3Rp5X2n/iUu37IJBDU2gsZ5R/g1/KHOOEc5IKfUFjXT6DENPGduh08I/pamwtEq4oul7gUqKTQDQ==",
       "dev": true,
       "requires": {
         "@types/yargs-parser": "*"
@@ -2558,39 +2559,6 @@
         "path-exists": "^4.0.0",
         "schema-utils": "^1.0.0",
         "user-meta": "^1.0.0"
-      },
-      "dependencies": {
-        "json5": {
-          "version": "1.0.1",
-          "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
-          "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
-          "dev": true,
-          "requires": {
-            "minimist": "^1.2.0"
-          }
-        },
-        "loader-utils": {
-          "version": "1.4.0",
-          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-1.4.0.tgz",
-          "integrity": "sha512-qH0WSMBtn/oHuwjy/NucEgbx5dbxxnxup9s4PVXJUDHZBQY+s0NWA9rJf53RBnQZxfch7euUui7hpoAPvALZdA==",
-          "dev": true,
-          "requires": {
-            "big.js": "^5.2.2",
-            "emojis-list": "^3.0.0",
-            "json5": "^1.0.1"
-          }
-        },
-        "schema-utils": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-1.0.0.tgz",
-          "integrity": "sha512-i27Mic4KovM/lnGsy8whRCHhc7VicJajAjTrYg11K9zfZXnYIt4k5F+kZkwjnrhKzLic/HLU4j11mjsz2G/75g==",
-          "dev": true,
-          "requires": {
-            "ajv": "^6.1.0",
-            "ajv-errors": "^1.0.0",
-            "ajv-keywords": "^3.1.0"
-          }
-        }
       }
     },
     "@webpack-contrib/eslint-config-webpack": {
@@ -2675,6 +2643,7 @@
       "version": "6.12.6",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
       "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
+      "dev": true,
       "requires": {
         "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
@@ -2691,7 +2660,8 @@
     "ajv-keywords": {
       "version": "3.5.2",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.5.2.tgz",
-      "integrity": "sha512-5p6WTN0DdTGVQk6VjcEju19IgaHudalcfabD7yhDGeA6bcQnmL+CpveLJq/3hvfwd1aof6L386Ougkx6RfyMIQ=="
+      "integrity": "sha512-5p6WTN0DdTGVQk6VjcEju19IgaHudalcfabD7yhDGeA6bcQnmL+CpveLJq/3hvfwd1aof6L386Ougkx6RfyMIQ==",
+      "dev": true
     },
     "alphanum-sort": {
       "version": "1.0.2",
@@ -3171,7 +3141,8 @@
     "big.js": {
       "version": "5.2.2",
       "resolved": "https://registry.npmjs.org/big.js/-/big.js-5.2.2.tgz",
-      "integrity": "sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ=="
+      "integrity": "sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ==",
+      "dev": true
     },
     "binary-extensions": {
       "version": "1.13.1",
@@ -3232,16 +3203,16 @@
       "dev": true
     },
     "browserslist": {
-      "version": "4.16.1",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.1.tgz",
-      "integrity": "sha512-UXhDrwqsNcpTYJBTZsbGATDxZbiVDsx6UjpmRUmtnP10pr8wAYr5LgFoEFw9ixriQH2mv/NX2SfGzE/o8GndLA==",
+      "version": "4.16.3",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.3.tgz",
+      "integrity": "sha512-vIyhWmIkULaq04Gt93txdh+j02yX/JzlyhLYbV3YQCn/zvES3JnY7TifHHvvr1w5hTDluNKMkV05cs4vy8Q7sw==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30001173",
+        "caniuse-lite": "^1.0.30001181",
         "colorette": "^1.2.1",
-        "electron-to-chromium": "^1.3.634",
+        "electron-to-chromium": "^1.3.649",
         "escalade": "^3.1.1",
-        "node-releases": "^1.1.69"
+        "node-releases": "^1.1.70"
       }
     },
     "bser": {
@@ -3353,9 +3324,9 @@
       }
     },
     "caniuse-lite": {
-      "version": "1.0.30001179",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001179.tgz",
-      "integrity": "sha512-blMmO0QQujuUWZKyVrD1msR4WNDAqb/UPO1Sw2WWsQ7deoM5bJiicKnWJ1Y0NS/aGINSnKPIWBMw5luX+NDUCA==",
+      "version": "1.0.30001183",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001183.tgz",
+      "integrity": "sha512-7JkwTEE1hlRKETbCFd8HDZeLiQIUcl8rC6JgNjvHCNaxOeNmQ9V4LvQXRUsKIV2CC73qKxljwVhToaA3kLRqTw==",
       "dev": true
     },
     "capture-exit": {
@@ -5360,9 +5331,9 @@
       }
     },
     "electron-to-chromium": {
-      "version": "1.3.642",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.642.tgz",
-      "integrity": "sha512-cev+jOrz/Zm1i+Yh334Hed6lQVOkkemk2wRozfMF4MtTR7pxf3r3L5Rbd7uX1zMcEqVJ7alJBnJL7+JffkC6FQ==",
+      "version": "1.3.650",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.650.tgz",
+      "integrity": "sha512-j6pRuNylFBbroG6NB8Lw/Im9oDY74s2zWHBP5TmdYg73cBuL6cz//SMgolVa0gIJk/DSL+kO7baJ1DSXW1FUZg==",
       "dev": true
     },
     "emittery": {
@@ -5380,7 +5351,8 @@
     "emojis-list": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/emojis-list/-/emojis-list-3.0.0.tgz",
-      "integrity": "sha512-/kyM18EfinwXZbno9FyUGeFh87KC8HRQBQGildHZbEuRyWFOmv1U10o9BBp8XVZDVNNuQKyIGIu5ZYAAXJ0V2Q=="
+      "integrity": "sha512-/kyM18EfinwXZbno9FyUGeFh87KC8HRQBQGildHZbEuRyWFOmv1U10o9BBp8XVZDVNNuQKyIGIu5ZYAAXJ0V2Q==",
+      "dev": true
     },
     "end-of-stream": {
       "version": "1.4.4",
@@ -5411,9 +5383,9 @@
       }
     },
     "entities": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/entities/-/entities-2.1.0.tgz",
-      "integrity": "sha512-hCx1oky9PFrJ611mf0ifBLBRW8lUUVRlFolb5gWRfIELabBlbp9xZvrqZLZAs+NxFnbfQoeGd8wDkygjg7U85w==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-2.2.0.tgz",
+      "integrity": "sha512-p92if5Nz619I0w+akJrLZH0MX0Pb5DX39XOwQTtXSdQQOaYH03S1uIQp4mhOZtAXrxq4ViO67YTiLBo2638o9A==",
       "dev": true
     },
     "errno": {
@@ -5552,9 +5524,9 @@
       }
     },
     "eslint": {
-      "version": "7.18.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.18.0.tgz",
-      "integrity": "sha512-fbgTiE8BfUJZuBeq2Yi7J3RB3WGUQ9PNuNbmgi6jt9Iv8qrkxfy19Ds3OpL1Pm7zg3BtTVhvcUZbIRQ0wmSjAQ==",
+      "version": "7.19.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.19.0.tgz",
+      "integrity": "sha512-CGlMgJY56JZ9ZSYhJuhow61lMPPjUzWmChFya71Z/jilVos7mR/jPgaEfVGgMBY5DshbKdG8Ezb8FDCHcoMEMg==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
@@ -6220,7 +6192,8 @@
     "fast-deep-equal": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
-      "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="
+      "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
+      "dev": true
     },
     "fast-glob": {
       "version": "3.2.5",
@@ -6293,7 +6266,8 @@
     "fast-json-stable-stringify": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
-      "integrity": "sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw=="
+      "integrity": "sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw==",
+      "dev": true
     },
     "fast-levenshtein": {
       "version": "2.0.6",
@@ -6302,9 +6276,9 @@
       "dev": true
     },
     "fastq": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.10.0.tgz",
-      "integrity": "sha512-NL2Qc5L3iQEsyYzweq7qfgy5OtXCmGzGvhElGEd/SoFWEMOEczNh5s5ocaF01HDetxz+p8ecjNPA6cZxxIHmzA==",
+      "version": "1.10.1",
+      "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.10.1.tgz",
+      "integrity": "sha512-AWuv6Ery3pM+dY7LYS8YIaCiQvUaos9OB1RyNgaOWnaX+Tik7Onvcsf8x8c+YtDeT0maYLniBip2hox5KtEXXA==",
       "dev": true,
       "requires": {
         "reusify": "^1.0.4"
@@ -6510,9 +6484,9 @@
       "dev": true
     },
     "get-intrinsic": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.0.2.tgz",
-      "integrity": "sha512-aeX0vrFm21ILl3+JpFFRNe9aUvp6VFZb2/CTbgLb8j75kOhvoNYjt9d8KA/tJG4gSo8nzEDedRl0h7vDmBYRVg==",
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.1.0.tgz",
+      "integrity": "sha512-M11rgtQp5GZMZzDL7jLTNxbDfurpzuau5uqRWDPvlHjfvg3TdScAZo96GLvhMjImrmR8uAt0FS2RLoMrfWGKlg==",
       "dev": true,
       "requires": {
         "function-bind": "^1.1.1",
@@ -6802,13 +6776,13 @@
       }
     },
     "git-raw-commits": {
-      "version": "2.0.9",
-      "resolved": "https://registry.npmjs.org/git-raw-commits/-/git-raw-commits-2.0.9.tgz",
-      "integrity": "sha512-hSpNpxprVno7IOd4PZ93RQ+gNdzPAIrW0x8av6JQDJGV4k1mR9fE01dl8sEqi2P7aKmmwiGUn1BCPuf16Ae0Qw==",
+      "version": "2.0.10",
+      "resolved": "https://registry.npmjs.org/git-raw-commits/-/git-raw-commits-2.0.10.tgz",
+      "integrity": "sha512-sHhX5lsbG9SOO6yXdlwgEMQ/ljIn7qMpAbJZCGfXX2fq5T8M5SrDnpYk9/4HswTildcIqatsWa91vty6VhWSaQ==",
       "dev": true,
       "requires": {
         "dargs": "^7.0.0",
-        "lodash.template": "^4.0.2",
+        "lodash": "^4.17.15",
         "meow": "^8.0.0",
         "split2": "^3.0.0",
         "through2": "^4.0.0"
@@ -7170,9 +7144,9 @@
       }
     },
     "hosted-git-info": {
-      "version": "3.0.7",
-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-3.0.7.tgz",
-      "integrity": "sha512-fWqc0IcuXs+BmE9orLDyVykAG9GJtGLGuZAAqgcckPgv5xad4AcXGIv8galtQvlwutxSlaMcdw7BUtq2EIvqCQ==",
+      "version": "3.0.8",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-3.0.8.tgz",
+      "integrity": "sha512-aXpmwoOhRBrw6X3j0h5RloK4x1OzsxMPyxqIHyNfSe2pypkVTZFpEiRoSipPEPlMrh0HW/XsjkJ5WgnCirpNUw==",
       "dev": true,
       "requires": {
         "lru-cache": "^6.0.0"
@@ -7529,9 +7503,9 @@
       "dev": true
     },
     "is-callable": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.2.2.tgz",
-      "integrity": "sha512-dnMqspv5nU3LoewK2N/y7KLtxtakvTuaCsU9FU50/QDmdbHNy/4/JuRtMHqRU22o3q+W89YQndQEeCVwK+3qrA==",
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.2.3.tgz",
+      "integrity": "sha512-J1DcMe8UYTBSrKezuIUTUwjXsho29693unXM2YhJUTR2txK/eG47bvNa/wipPFmZFgr/N6f1GA66dv0mEyTIyQ==",
       "dev": true
     },
     "is-ci": {
@@ -7741,11 +7715,12 @@
       "dev": true
     },
     "is-regex": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.1.1.tgz",
-      "integrity": "sha512-1+QkEcxiLlB7VEyFtyBg94e08OAsvq7FUBgApTq/w2ymCLyKJgDPsybBENVtA7XCQEgEXxKPonG+mvYRxh/LIg==",
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/is-regex/-/is-regex-1.1.2.tgz",
+      "integrity": "sha512-axvdhb5pdhEVThqJzYXwMlVuZwC+FF2DpcOhTS+y/8jVq4trxyPgfcwIxIKiyeuLlSQYKkmUaPQJ8ZE4yNKXDg==",
       "dev": true,
       "requires": {
+        "call-bind": "^1.0.2",
         "has-symbols": "^1.0.1"
       }
     },
@@ -9529,7 +9504,8 @@
     "json-schema-traverse": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
-      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg=="
+      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==",
+      "dev": true
     },
     "json-stable-stringify-without-jsonify": {
       "version": "1.0.1",
@@ -9544,9 +9520,10 @@
       "dev": true
     },
     "json5": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/json5/-/json5-2.1.3.tgz",
-      "integrity": "sha512-KXPvOm8K9IJKFM0bmdn8QXh7udDh1g/giieX0NLCaMnb4hEiVFqnop2ImTXCc5e0/oHz3LTqmHGtExn5hfMkOA==",
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.0.tgz",
+      "integrity": "sha512-f+8cldu7X/y7RAJurMEJmdoKXGB/X550w2Nr3tTbezL6RwEE/iMcm+tZnXeoZtKuOq6ft8+CqzEkrIgx1fPoQA==",
+      "dev": true,
       "requires": {
         "minimist": "^1.2.5"
       }
@@ -9603,9 +9580,9 @@
       "integrity": "sha512-ZRbnvdg/NxqzC7L9Uyqzf4psi1OM4Cuc+sJAkQPjO6XkQIJTNbfK2Rsmbw8fx1p2mkZdp2FZYo2+LwXYY/uwIA=="
     },
     "less": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/less/-/less-4.1.0.tgz",
-      "integrity": "sha512-w1Ag/f34g7LwtQ/sMVSGWIyZx+gG9ZOAEtyxeX1fG75is6BMyC2lD5kG+1RueX7PkAvlQBm2Lf2aN2j0JbVr2A==",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/less/-/less-4.1.1.tgz",
+      "integrity": "sha512-w09o8tZFPThBscl5d0Ggp3RcrKIouBoQscnOMgFH3n5V3kN/CXGHNfCkRPtxJk6nKryDXaV9aHLK55RXuH4sAw==",
       "dev": true,
       "requires": {
         "copy-anything": "^2.0.1",
@@ -9630,14 +9607,12 @@
       }
     },
     "less-loader": {
-      "version": "7.2.1",
-      "resolved": "https://registry.npmjs.org/less-loader/-/less-loader-7.2.1.tgz",
-      "integrity": "sha512-4v83WZ7KGbluOWPgk3iNjreAaJDNStfmmdfJbQIib3Jlc8mejV3w6A9xU+EkaivjBVqwQEK0y8cFthyNeGnrTQ==",
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/less-loader/-/less-loader-8.0.0.tgz",
+      "integrity": "sha512-tnDs0ZdwPZgNOg0NGJ0sAD2KViG9TvOMDVibT33fH1bpLkT4xMo5Ue2FsbjFsVsUKtuRTlU0tYp2/lRizrycLg==",
       "dev": true,
       "requires": {
-        "klona": "^2.0.4",
-        "loader-utils": "^2.0.0",
-        "schema-utils": "^3.0.0"
+        "klona": "^2.0.4"
       }
     },
     "leven": {
@@ -9888,9 +9863,9 @@
       "dev": true
     },
     "listr2": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/listr2/-/listr2-3.3.0.tgz",
-      "integrity": "sha512-G9IFI/m65icgVlifS0wMQnvn35/8VJGzEb3crpE4NnaegQYQOn/wP7yqi9TTJQ/eoxme4UaPbffBK1XqKP/DOg==",
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/listr2/-/listr2-3.3.1.tgz",
+      "integrity": "sha512-8Zoxe7s/8nNr4bJ8bdAduHD8uJce+exmMmUWTXlq0WuUdffnH3muisHPHPFtW2vvOfohIsq7FGCaguUxN/h3Iw==",
       "dev": true,
       "requires": {
         "chalk": "^4.1.0",
@@ -10002,13 +9977,25 @@
       "dev": true
     },
     "loader-utils": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.0.tgz",
-      "integrity": "sha512-rP4F0h2RaWSvPEkD7BLDFQnvSf+nK+wr3ESUjNTyAGobqrijmW92zc+SO6d4p4B1wh7+B/Jg1mkQe5NYUEHtHQ==",
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-1.4.0.tgz",
+      "integrity": "sha512-qH0WSMBtn/oHuwjy/NucEgbx5dbxxnxup9s4PVXJUDHZBQY+s0NWA9rJf53RBnQZxfch7euUui7hpoAPvALZdA==",
+      "dev": true,
       "requires": {
         "big.js": "^5.2.2",
         "emojis-list": "^3.0.0",
-        "json5": "^2.1.2"
+        "json5": "^1.0.1"
+      },
+      "dependencies": {
+        "json5": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
+          "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
+          "dev": true,
+          "requires": {
+            "minimist": "^1.2.0"
+          }
+        }
       }
     },
     "locate-path": {
@@ -10435,7 +10422,8 @@
     "minimist": {
       "version": "1.2.5",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
-      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
+      "dev": true
     },
     "minimist-options": {
       "version": "4.1.0",
@@ -13042,7 +13030,8 @@
     "punycode": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
+      "dev": true
     },
     "q": {
       "version": "1.5.1",
@@ -13291,9 +13280,9 @@
       "dev": true
     },
     "regjsparser": {
-      "version": "0.6.6",
-      "resolved": "https://registry.npmjs.org/regjsparser/-/regjsparser-0.6.6.tgz",
-      "integrity": "sha512-jjyuCp+IEMIm3N1H1LLTJW1EISEJV9+5oHdEyrt43Pg9cDSb6rrLZei2cVWpl0xTjmmlpec/lEQGYgM7xfpGCQ==",
+      "version": "0.6.7",
+      "resolved": "https://registry.npmjs.org/regjsparser/-/regjsparser-0.6.7.tgz",
+      "integrity": "sha512-ib77G0uxsA2ovgiYbCVGx4Pv3PSttAx2vIwidqQzbL2U5S4Q+j00HdSAneSBuyVcMvEnTXMjiGgB+DlXozVhpQ==",
       "dev": true,
       "requires": {
         "jsesc": "~0.5.0"
@@ -13589,9 +13578,9 @@
       }
     },
     "sass": {
-      "version": "1.32.5",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.32.5.tgz",
-      "integrity": "sha512-kU1yJ5zUAmPxr7f3q0YXTAd1oZjSR1g3tYyv+xu0HZSl5JiNOaE987eiz7wCUvbm4I9fGWGU2TgApTtcP4GMNQ==",
+      "version": "1.32.6",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.32.6.tgz",
+      "integrity": "sha512-1bcDHDcSqeFtMr0JXI3xc/CXX6c4p0wHHivJdru8W7waM7a1WjKMm4m/Z5sY7CbVw4Whi2Chpcw6DFfSWwGLzQ==",
       "dev": true,
       "requires": {
         "chokidar": ">=2.0.0 <4.0.0"
@@ -13608,6 +13597,30 @@
         "neo-async": "^2.6.2",
         "schema-utils": "^3.0.0",
         "semver": "^7.3.2"
+      },
+      "dependencies": {
+        "loader-utils": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.0.tgz",
+          "integrity": "sha512-rP4F0h2RaWSvPEkD7BLDFQnvSf+nK+wr3ESUjNTyAGobqrijmW92zc+SO6d4p4B1wh7+B/Jg1mkQe5NYUEHtHQ==",
+          "dev": true,
+          "requires": {
+            "big.js": "^5.2.2",
+            "emojis-list": "^3.0.0",
+            "json5": "^2.1.2"
+          }
+        },
+        "schema-utils": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-3.0.0.tgz",
+          "integrity": "sha512-6D82/xSzO094ajanoOSbe4YvXWMfn2A//8Y1+MUqFAJul5Bs+yn36xbK9OtNDcRVSBJ9jjeoXftM6CfztsjOAA==",
+          "dev": true,
+          "requires": {
+            "@types/json-schema": "^7.0.6",
+            "ajv": "^6.12.5",
+            "ajv-keywords": "^3.5.2"
+          }
+        }
       }
     },
     "sax": {
@@ -13626,13 +13639,14 @@
       }
     },
     "schema-utils": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-3.0.0.tgz",
-      "integrity": "sha512-6D82/xSzO094ajanoOSbe4YvXWMfn2A//8Y1+MUqFAJul5Bs+yn36xbK9OtNDcRVSBJ9jjeoXftM6CfztsjOAA==",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-1.0.0.tgz",
+      "integrity": "sha512-i27Mic4KovM/lnGsy8whRCHhc7VicJajAjTrYg11K9zfZXnYIt4k5F+kZkwjnrhKzLic/HLU4j11mjsz2G/75g==",
+      "dev": true,
       "requires": {
-        "@types/json-schema": "^7.0.6",
-        "ajv": "^6.12.5",
-        "ajv-keywords": "^3.5.2"
+        "ajv": "^6.1.0",
+        "ajv-errors": "^1.0.0",
+        "ajv-keywords": "^3.1.0"
       }
     },
     "semver": {
@@ -13970,9 +13984,9 @@
       }
     },
     "source-map-url": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/source-map-url/-/source-map-url-0.4.0.tgz",
-      "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/source-map-url/-/source-map-url-0.4.1.tgz",
+      "integrity": "sha512-cPiFOTLUKvJFIg4SKVScy4ilPPW6rFgMgfuZJPNoDuMs3nC1HbMUycBoJw77xFIp6z1UJQJOfx6C9GMH80DiTw==",
       "dev": true
     },
     "space-separated-tokens": {
@@ -14479,9 +14493,9 @@
       },
       "dependencies": {
         "ajv": {
-          "version": "7.0.3",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-7.0.3.tgz",
-          "integrity": "sha512-R50QRlXSxqXcQP5SvKUrw8VZeypvo12i2IX0EeR5PiZ7bEKeHWgzgo264LDadUsCU42lTJVhFikTqJwNeH34gQ==",
+          "version": "7.0.4",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-7.0.4.tgz",
+          "integrity": "sha512-xzzzaqgEQfmuhbhAoqjJ8T/1okb6gAzXn/eQRNpAN1AEUoHJTNF9xCDRTtf/s3SKldtZfa+RJeTs+BQq+eZ/sw==",
           "dev": true,
           "requires": {
             "fast-deep-equal": "^3.1.1",
@@ -14562,6 +14576,17 @@
             "yocto-queue": "^0.1.0"
           }
         },
+        "schema-utils": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-3.0.0.tgz",
+          "integrity": "sha512-6D82/xSzO094ajanoOSbe4YvXWMfn2A//8Y1+MUqFAJul5Bs+yn36xbK9OtNDcRVSBJ9jjeoXftM6CfztsjOAA==",
+          "dev": true,
+          "requires": {
+            "@types/json-schema": "^7.0.6",
+            "ajv": "^6.12.5",
+            "ajv-keywords": "^3.5.2"
+          }
+        },
         "source-map": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -14800,9 +14825,9 @@
       }
     },
     "uglify-js": {
-      "version": "3.12.5",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.12.5.tgz",
-      "integrity": "sha512-SgpgScL4T7Hj/w/GexjnBHi3Ien9WS1Rpfg5y91WXMj9SY997ZCQU76mH4TpLwwfmMvoOU8wiaRkIf6NaH3mtg==",
+      "version": "3.12.6",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.12.6.tgz",
+      "integrity": "sha512-aqWHe3DfQmZUDGWBbabZ2eQnJlQd1fKlMUu7gV+MiTuDzdgDw31bI3wA2jLLsV/hNcDP26IfyEgSVoft5+0SVw==",
       "dev": true,
       "optional": true
     },
@@ -14927,6 +14952,7 @@
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
       "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
+      "dev": true,
       "requires": {
         "punycode": "^2.1.0"
       }
@@ -15094,13 +15120,13 @@
       "dev": true
     },
     "webpack": {
-      "version": "5.16.0",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.16.0.tgz",
-      "integrity": "sha512-QOkctcjYfEGxcYg4AzPJafyAQ7ANc266/URkX881uFA7b2k31E0Dmpy1ExfppHOTp1kHDTsRh9sXojVUvgPF0g==",
+      "version": "5.19.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.19.0.tgz",
+      "integrity": "sha512-egX19vAQ8fZ4cVYtA9Y941eqJtcZAK68mQq87MMv+GTXKZOc3TpKBBxdGX+HXUYlquPxiluNsJ1VHvwwklW7CQ==",
       "dev": true,
       "requires": {
         "@types/eslint-scope": "^3.7.0",
-        "@types/estree": "^0.0.45",
+        "@types/estree": "^0.0.46",
         "@webassemblyjs/ast": "1.11.0",
         "@webassemblyjs/wasm-edit": "1.11.0",
         "@webassemblyjs/wasm-parser": "1.11.0",
@@ -15126,9 +15152,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "8.0.4",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.0.4.tgz",
-          "integrity": "sha512-XNP0PqF1XD19ZlLKvB7cMmnZswW4C/03pRHgirB30uSJTaS3A3V1/P4sS3HPvFmjoriPCJQs+JDSbm4bL1TxGQ==",
+          "version": "8.0.5",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.0.5.tgz",
+          "integrity": "sha512-v+DieK/HJkJOpFBETDJioequtc3PfxsWMaxIdIwujtF7FEV/MAyDQLlm6/zPvr7Mix07mLh6ccVwIsloceodlg==",
           "dev": true
         },
         "find-up": {
@@ -15176,6 +15202,17 @@
           "requires": {
             "find-up": "^5.0.0"
           }
+        },
+        "schema-utils": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-3.0.0.tgz",
+          "integrity": "sha512-6D82/xSzO094ajanoOSbe4YvXWMfn2A//8Y1+MUqFAJul5Bs+yn36xbK9OtNDcRVSBJ9jjeoXftM6CfztsjOAA==",
+          "dev": true,
+          "requires": {
+            "@types/json-schema": "^7.0.6",
+            "ajv": "^6.12.5",
+            "ajv-keywords": "^3.5.2"
+          }
         }
       }
     },
diff --git a/package.json b/package.json
index f7592666..c9113aef 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "postcss-loader",
-  "version": "4.2.0",
+  "version": "5.0.0",
   "description": "PostCSS loader for webpack",
   "license": "MIT",
   "repository": "webpack-contrib/postcss-loader",
@@ -38,14 +38,12 @@
     "dist"
   ],
   "peerDependencies": {
-    "webpack": "^4.0.0 || ^5.0.0",
+    "webpack": "^5.0.0",
     "postcss": "^7.0.0 || ^8.0.1"
   },
   "dependencies": {
     "cosmiconfig": "^7.0.0",
     "klona": "^2.0.4",
-    "loader-utils": "^2.0.0",
-    "schema-utils": "^3.0.0",
     "semver": "^7.3.4"
   },
   "devDependencies": {
@@ -61,30 +59,30 @@
     "cssnano": "^4.1.10",
     "del": "^6.0.0",
     "del-cli": "^3.0.1",
-    "eslint": "^7.18.0",
-    "eslint-config-prettier": "^7.2.0",
+    "eslint": "^7.17.0",
+    "eslint-config-prettier": "^7.1.0",
     "eslint-plugin-import": "^2.22.1",
-    "husky": "^4.3.8",
+    "husky": "^4.3.6",
     "jest": "^26.6.3",
-    "less": "^4.1.0",
-    "less-loader": "^7.2.1",
+    "less": "^4.0.0",
+    "less-loader": "^8.0.0",
     "lint-staged": "^10.5.3",
     "memfs": "^3.2.0",
     "midas": "^2.0.3",
     "npm-run-all": "^4.1.5",
-    "postcss": "^8.2.4",
+    "postcss": "^8.2.2",
     "postcss-dark-theme-class": "^0.5.1",
     "postcss-import": "^14.0.0",
     "postcss-js": "^3.0.3",
     "postcss-nested": "^5.0.3",
     "postcss-short": "^5.0.0",
-    "prettier": "^2.2.0",
-    "sass": "^1.32.5",
-    "sass-loader": "^10.1.1",
+    "prettier": "^2.2.1",
+    "sass": "^1.32.0",
+    "sass-loader": "^10.1.0",
     "standard-version": "^9.1.0",
     "strip-ansi": "^6.0.0",
     "sugarss": "^3.0.3",
-    "webpack": "^5.16.0"
+    "webpack": "^5.11.1"
   },
   "keywords": [
     "css",
diff --git a/src/index.js b/src/index.js
index 9f5ca512..9d359720 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,6 +1,3 @@
-import { getOptions } from "loader-utils";
-import { validate } from "schema-utils";
-
 import postcss from "postcss";
 import { satisfies } from "semver";
 import postcssPackage from "postcss/package.json";
@@ -31,15 +28,8 @@ import {
  */
 
 export default async function loader(content, sourceMap, meta) {
-  const options = getOptions(this);
-
-  validate(schema, options, {
-    name: "PostCSS Loader",
-    baseDataPath: "options",
-  });
-
+  const options = this.getOptions(schema);
   const callback = this.async();
-
   const configOption =
     typeof options.postcssOptions === "undefined" ||
     typeof options.postcssOptions.config === "undefined"
diff --git a/src/options.json b/src/options.json
index 255e3cfb..3c2a6ef8 100644
--- a/src/options.json
+++ b/src/options.json
@@ -1,4 +1,5 @@
 {
+  "title": "PostCSS Loader options",
   "type": "object",
   "properties": {
     "postcssOptions": {
diff --git a/src/utils.js b/src/utils.js
index f4f735d7..e43becf0 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -63,7 +63,7 @@ async function loadConfig(loaderContext, config, postcssOptions) {
     return {};
   }
 
-  loaderContext.addDependency(result.filepath);
+  loaderContext.addBuildDependency(result.filepath);
 
   if (result.isEmpty) {
     return result;
diff --git a/test/config-autoload.test.js b/test/config-autoload.test.js
index ea98aa68..ff62c74b 100644
--- a/test/config-autoload.test.js
+++ b/test/config-autoload.test.js
@@ -7,7 +7,7 @@ const testDirectory = path.resolve(__dirname, "fixtures", "config-autoload");
 
 const loaderContext = {
   fs,
-  addDependency: () => true,
+  addBuildDependency: () => true,
 };
 
 describe("autoload config", () => {