diff --git a/__tests__/utils.test.ts b/__tests__/utils.test.ts
index efc64df..37ea9f4 100644
--- a/__tests__/utils.test.ts
+++ b/__tests__/utils.test.ts
@@ -3,7 +3,7 @@ import postcss from "postcss";
 import Loaders from "../src/loaders";
 import postcssNoop from "../src/loaders/postcss/noop";
 import loadSass from "../src/loaders/sass/load";
-import { ensurePCSSOption } from "../src/utils/options";
+import { ensurePCSSOption, ensurePCSSPlugins } from "../src/utils/options";
 import { mm, getMap, stripMap } from "../src/utils/sourcemap";
 import { humanlizePath } from "../src/utils/path";
 
@@ -21,16 +21,16 @@ test("noop", async () => {
 });
 
 describe("load-module", () => {
-  test("wrong path", () => {
-    expect(loadModule("totallyWRONGPATH/here")).toBeUndefined();
+  test("wrong path", async () => {
+    expect(await loadModule("totallyWRONGPATH/here")).toBeUndefined();
   });
 
-  test("correct cwd path", () => {
-    expect(loadModule(humanlizePath(fixture("utils/fixture")))).toBe("this is fixture");
+  test("correct cwd path", async () => {
+    expect(await loadModule(humanlizePath(fixture("utils/fixture")))).toBe("this is fixture");
   });
 
-  test("correct absolute path", () => {
-    expect(loadModule(fixture("utils/fixture"))).toBe("this is fixture");
+  test("correct absolute path", async () => {
+    expect(await loadModule(fixture("utils/fixture"))).toBe("this is fixture");
   });
 });
 
@@ -68,8 +68,14 @@ describe("load-sass", () => {
 });
 
 describe("option-utils", () => {
-  test("wrong postcss option", () => {
-    expect(() => ensurePCSSOption("pumpinizer", "plugin")).toThrowErrorMatchingSnapshot();
+  test("wrong postcss option", async () => {
+    await expect(ensurePCSSOption("pumpinizer", "plugin")).rejects.toThrowErrorMatchingSnapshot();
+  });
+
+  test("plugin as array without options", async () => {
+    const plugins = await ensurePCSSPlugins([["autoprefixer"]]);
+    expect(plugins).toHaveLength(1);
+    expect(typeof plugins[0]).toBe("function");
   });
 });
 
diff --git a/package-lock.json b/package-lock.json
index 8901d18..cc411e1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,12 +10,12 @@
       "license": "MIT",
       "dependencies": {
         "@rollup/pluginutils": "^5.0.0",
-        "cosmiconfig": "^8.0.0",
+        "cosmiconfig": "^9.0.0",
         "cssnano": "^7.0.0",
         "fs-extra": "^11.0.0",
         "icss-utils": "^5.1.0",
-        "mime-types": "^2.1.35",
-        "p-queue": "^8.0.0",
+        "mime-types": "^3.0.0",
+        "p-queue": "^9.0.0",
         "postcss": "^8.4.31",
         "postcss-modules-extract-imports": "^3.0.0",
         "postcss-modules-local-by-default": "^4.0.3",
@@ -46,7 +46,7 @@
         "@types/fs-extra": "^11.0.0",
         "@types/jest": "^29.0.0",
         "@types/less": "^3.0.6",
-        "@types/mime-types": "^2.1.4",
+        "@types/mime-types": "^3.0.0",
         "@types/node": "^22.0.0",
         "@types/resolve": "^1.20.5",
         "@types/stylus": "^0.48.42",
@@ -68,7 +68,7 @@
         "less": "^4.2.0",
         "lint-staged": "^15.0.0",
         "minireset.css": "^0.0.7",
-        "postcss-custom-properties": "^14.0.0",
+        "postcss-custom-properties": "^15.0.0",
         "prettier": "^3.0.0",
         "rollup": "^4.4.1",
         "rollup-plugin-dts": "^6.1.0",
@@ -78,14 +78,14 @@
         "semantic-release": "^25.0.1",
         "shx": "^0.3.4",
         "stylus": "^0.61.0",
-        "sugarss": "^4.0.1",
+        "sugarss": "^5.0.0",
         "ts-jest": "^29.0.0",
         "typedoc": "^0.27.0",
         "typedoc-plugin-missing-exports": "^3.0.0",
         "typescript": "^5.0.0"
       },
       "engines": {
-        "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+        "node": ">=20.19.0"
       },
       "peerDependencies": {
         "rollup": "^2.63.0 || ^3.0.0 || ^4.0.0"
@@ -2103,40 +2103,6 @@
         "node": ">=v18"
       }
     },
-    "node_modules/@commitlint/load/node_modules/argparse": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
-      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
-      "dev": true,
-      "license": "Python-2.0"
-    },
-    "node_modules/@commitlint/load/node_modules/cosmiconfig": {
-      "version": "9.0.2",
-      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.2.tgz",
-      "integrity": "sha512-gtTZxTDau1wL7Y7zifc2dd8jHSK/k6BTx/2Xp/BpdlAdnlYWFVt7qhJqgwi7637yRwRQ3qL4ZidbB4I8tA5VOg==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "env-paths": "^2.2.1",
-        "import-fresh": "^3.3.0",
-        "js-yaml": "^4.1.0",
-        "parse-json": "^5.2.0"
-      },
-      "engines": {
-        "node": ">=14"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/d-fischer"
-      },
-      "peerDependencies": {
-        "typescript": ">=4.9.5"
-      },
-      "peerDependenciesMeta": {
-        "typescript": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/@commitlint/load/node_modules/cosmiconfig-typescript-loader": {
       "version": "6.3.0",
       "resolved": "https://registry.npmjs.org/cosmiconfig-typescript-loader/-/cosmiconfig-typescript-loader-6.3.0.tgz",
@@ -2155,29 +2121,6 @@
         "typescript": ">=5"
       }
     },
-    "node_modules/@commitlint/load/node_modules/js-yaml": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.0.tgz",
-      "integrity": "sha512-1td788aAnnZ5qs7V2QIRl1owjtYpbKt749Y3xauqQgwIIGF/xXWz1wMTEBx5O3LK3lXLVuqXPdPxj2BoFHaW9Q==",
-      "dev": true,
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/puzrin"
-        },
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/nodeca"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "argparse": "^2.0.1"
-      },
-      "bin": {
-        "js-yaml": "bin/js-yaml.js"
-      }
-    },
     "node_modules/@commitlint/message": {
       "version": "20.4.3",
       "resolved": "https://registry.npmjs.org/@commitlint/message/-/message-20.4.3.tgz",
@@ -2316,40 +2259,6 @@
         "node": ">=v18"
       }
     },
-    "node_modules/@commitlint/prompt/node_modules/argparse": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
-      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
-      "dev": true,
-      "license": "Python-2.0"
-    },
-    "node_modules/@commitlint/prompt/node_modules/cosmiconfig": {
-      "version": "9.0.2",
-      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.2.tgz",
-      "integrity": "sha512-gtTZxTDau1wL7Y7zifc2dd8jHSK/k6BTx/2Xp/BpdlAdnlYWFVt7qhJqgwi7637yRwRQ3qL4ZidbB4I8tA5VOg==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "env-paths": "^2.2.1",
-        "import-fresh": "^3.3.0",
-        "js-yaml": "^4.1.0",
-        "parse-json": "^5.2.0"
-      },
-      "engines": {
-        "node": ">=14"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/d-fischer"
-      },
-      "peerDependencies": {
-        "typescript": ">=4.9.5"
-      },
-      "peerDependenciesMeta": {
-        "typescript": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/@commitlint/prompt/node_modules/cosmiconfig-typescript-loader": {
       "version": "6.3.0",
       "resolved": "https://registry.npmjs.org/cosmiconfig-typescript-loader/-/cosmiconfig-typescript-loader-6.3.0.tgz",
@@ -2394,29 +2303,6 @@
         "node": "^14.17.0 || ^16.13.0 || >=18.0.0"
       }
     },
-    "node_modules/@commitlint/prompt/node_modules/js-yaml": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.0.tgz",
-      "integrity": "sha512-1td788aAnnZ5qs7V2QIRl1owjtYpbKt749Y3xauqQgwIIGF/xXWz1wMTEBx5O3LK3lXLVuqXPdPxj2BoFHaW9Q==",
-      "dev": true,
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/puzrin"
-        },
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/nodeca"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "argparse": "^2.0.1"
-      },
-      "bin": {
-        "js-yaml": "bin/js-yaml.js"
-      }
-    },
     "node_modules/@commitlint/read": {
       "version": "20.5.0",
       "resolved": "https://registry.npmjs.org/@commitlint/read/-/read-20.5.0.tgz",
@@ -2560,9 +2446,9 @@
       }
     },
     "node_modules/@csstools/cascade-layer-name-parser": {
-      "version": "2.0.5",
-      "resolved": "https://registry.npmjs.org/@csstools/cascade-layer-name-parser/-/cascade-layer-name-parser-2.0.5.tgz",
-      "integrity": "sha512-p1ko5eHgV+MgXFVa4STPKpvPxr6ReS8oS2jzTukjR74i5zJNyWO1ZM1m8YKBXnzDKWfBN1ztLYlHxbVemDD88A==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@csstools/cascade-layer-name-parser/-/cascade-layer-name-parser-3.0.0.tgz",
+      "integrity": "sha512-/3iksyevwRfSJx5yH0RkcrcYXwuhMQx3Juqf40t97PeEy2/Mz2TItZ/z/216qpe4GgOyFBP8MKIwVvytzHmfIQ==",
       "dev": true,
       "funding": [
         {
@@ -2576,17 +2462,17 @@
       ],
       "license": "MIT",
       "engines": {
-        "node": ">=18"
+        "node": ">=20.19.0"
       },
       "peerDependencies": {
-        "@csstools/css-parser-algorithms": "^3.0.5",
-        "@csstools/css-tokenizer": "^3.0.4"
+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.0"
       }
     },
     "node_modules/@csstools/css-parser-algorithms": {
-      "version": "3.0.5",
-      "resolved": "https://registry.npmjs.org/@csstools/css-parser-algorithms/-/css-parser-algorithms-3.0.5.tgz",
-      "integrity": "sha512-DaDeUkXZKjdGhgYaHNJTV9pV7Y9B3b644jCLs9Upc3VeNGg6LWARAT6O+Q+/COo+2gg/bM5rhpMAtf70WqfBdQ==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@csstools/css-parser-algorithms/-/css-parser-algorithms-4.0.0.tgz",
+      "integrity": "sha512-+B87qS7fIG3L5h3qwJ/IFbjoVoOe/bpOdh9hAjXbvx0o8ImEmUsGXN0inFOnk2ChCFgqkkGFQ+TpM5rbhkKe4w==",
       "dev": true,
       "funding": [
         {
@@ -2600,16 +2486,16 @@
       ],
       "license": "MIT",
       "engines": {
-        "node": ">=18"
+        "node": ">=20.19.0"
       },
       "peerDependencies": {
-        "@csstools/css-tokenizer": "^3.0.4"
+        "@csstools/css-tokenizer": "^4.0.0"
       }
     },
     "node_modules/@csstools/css-tokenizer": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/@csstools/css-tokenizer/-/css-tokenizer-3.0.4.tgz",
-      "integrity": "sha512-Vd/9EVDiu6PPJt9yAh6roZP6El1xHrdvIVGjyBsHR0RYwNHgL7FJPyIIW4fANJNG6FtyZfvlRPpFI4ZM/lubvw==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@csstools/css-tokenizer/-/css-tokenizer-4.0.0.tgz",
+      "integrity": "sha512-QxULHAm7cNu72w97JUNCBFODFaXpbDg+dP8b/oWFAZ2MTRppA3U00Y2L1HqaS4J6yBqxwa/Y3nMBaxVKbB/NsA==",
       "dev": true,
       "funding": [
         {
@@ -2623,13 +2509,13 @@
       ],
       "license": "MIT",
       "engines": {
-        "node": ">=18"
+        "node": ">=20.19.0"
       }
     },
     "node_modules/@csstools/utilities": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@csstools/utilities/-/utilities-2.0.0.tgz",
-      "integrity": "sha512-5VdOr0Z71u+Yp3ozOx8T11N703wIFGVRgOWbOZMKgglPJsWA54MRIoMNVMa7shUToIhx5J8vX4sOZgD2XiihiQ==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@csstools/utilities/-/utilities-3.0.0.tgz",
+      "integrity": "sha512-etDqA/4jYvOGBM6yfKCOsEXfH96BKztZdgGmGqKi2xHnDe0ILIBraRspwgYatJH9JsCZ5HCGoCst8w18EKOAdg==",
       "dev": true,
       "funding": [
         {
@@ -2643,7 +2529,7 @@
       ],
       "license": "MIT-0",
       "engines": {
-        "node": ">=18"
+        "node": ">=20.19.0"
       },
       "peerDependencies": {
         "postcss": "^8.4"
@@ -5577,9 +5463,9 @@
       "license": "MIT"
     },
     "node_modules/@types/mime-types": {
-      "version": "2.1.4",
-      "resolved": "https://registry.npmjs.org/@types/mime-types/-/mime-types-2.1.4.tgz",
-      "integrity": "sha512-lfU4b34HOri+kAY5UheuFMWPDOI+OPceBSHZKp69gEyTL/mmJ4cnU6Y/rlme3UL3GyOn6Y42hyIEw0/q8sWx5w==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/@types/mime-types/-/mime-types-3.0.1.tgz",
+      "integrity": "sha512-xRMsfuQbnRq1Ef+C+RKaENOxXX87Ygl38W1vDfPHRku02TgQr+Qd8iivLtAMcR0KF5/29xlnFihkTlbqFrGOVQ==",
       "dev": true,
       "license": "MIT"
     },
@@ -7356,15 +7242,15 @@
       "license": "MIT"
     },
     "node_modules/cosmiconfig": {
-      "version": "8.3.6",
-      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-8.3.6.tgz",
-      "integrity": "sha512-kcZ6+W5QzcJ3P1Mt+83OUv/oHFqZHIx8DuxG6eZ5RGMERoLqp4BuGjhHLYGK+Kf5XVkQvqBSmAy/nGWN3qDgEA==",
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.2.tgz",
+      "integrity": "sha512-gtTZxTDau1wL7Y7zifc2dd8jHSK/k6BTx/2Xp/BpdlAdnlYWFVt7qhJqgwi7637yRwRQ3qL4ZidbB4I8tA5VOg==",
       "license": "MIT",
       "dependencies": {
+        "env-paths": "^2.2.1",
         "import-fresh": "^3.3.0",
         "js-yaml": "^4.1.0",
-        "parse-json": "^5.2.0",
-        "path-type": "^4.0.0"
+        "parse-json": "^5.2.0"
       },
       "engines": {
         "node": ">=14"
@@ -8258,7 +8144,6 @@
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/env-paths/-/env-paths-2.2.1.tgz",
       "integrity": "sha512-+h1lkLKhZMTYjog1VEpJNG7NZJWcuc2DDk/qsqSTRRCOXiLjeQ1d1/udrUGhqMxUgAlwKNZ0cf2uqan5GLuS2A==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=6"
@@ -13392,24 +13277,28 @@
       }
     },
     "node_modules/mime-db": {
-      "version": "1.52.0",
-      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
-      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "version": "1.54.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.54.0.tgz",
+      "integrity": "sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ==",
       "license": "MIT",
       "engines": {
         "node": ">= 0.6"
       }
     },
     "node_modules/mime-types": {
-      "version": "2.1.35",
-      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
-      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-3.0.2.tgz",
+      "integrity": "sha512-Lbgzdk0h4juoQ9fCKXW4by0UJqj+nOOrI9MJ1sSj4nI8aI2eo1qmvQEie4VD1glsS250n15LsWsYtCugiStS5A==",
       "license": "MIT",
       "dependencies": {
-        "mime-db": "1.52.0"
+        "mime-db": "^1.54.0"
       },
       "engines": {
-        "node": ">= 0.6"
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
       }
     },
     "node_modules/mimic-fn": {
@@ -15989,16 +15878,28 @@
       }
     },
     "node_modules/p-queue": {
-      "version": "8.1.1",
-      "resolved": "https://registry.npmjs.org/p-queue/-/p-queue-8.1.1.tgz",
-      "integrity": "sha512-aNZ+VfjobsWryoiPnEApGGmf5WmNsCo9xu8dfaYamG5qaLP7ClhLN6NgsFe6SwJ2UbLEBK5dv9x8Mn5+RVhMWQ==",
+      "version": "9.3.3",
+      "resolved": "https://registry.npmjs.org/p-queue/-/p-queue-9.3.3.tgz",
+      "integrity": "sha512-NXAOdnEe5FsZJfT4oK84lE1Y5cFFdWlRuOo5tww8DyNMxyRXwn39fIkUtNLKppcPC+UYU/bXujNCUGDv01y7CA==",
       "license": "MIT",
       "dependencies": {
-        "eventemitter3": "^5.0.1",
-        "p-timeout": "^6.1.2"
+        "eventemitter3": "^5.0.4",
+        "p-timeout": "^7.0.0"
       },
       "engines": {
-        "node": ">=18"
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/p-queue/node_modules/p-timeout": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/p-timeout/-/p-timeout-7.0.1.tgz",
+      "integrity": "sha512-AxTM2wDGORHGEkPCt8yqxOTMgpfbEHqF51f/5fJCmwFC3C/zNcGT63SymH2ttOAaiIws2zVg4+izQCjrakcwHg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=20"
       },
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
@@ -16018,6 +15919,7 @@
       "version": "6.1.4",
       "resolved": "https://registry.npmjs.org/p-timeout/-/p-timeout-6.1.4.tgz",
       "integrity": "sha512-MyIV3ZA/PmyBN/ud8vV9XzwTrNtR4jFrObymZYnZqMmW0zA8Z17vnT0rBgFE/TlohB+YCHqXMgZzb3Csp49vqg==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=14.16"
@@ -16153,6 +16055,7 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-type/-/path-type-4.0.0.tgz",
       "integrity": "sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -16408,9 +16311,9 @@
       }
     },
     "node_modules/postcss-custom-properties": {
-      "version": "14.0.6",
-      "resolved": "https://registry.npmjs.org/postcss-custom-properties/-/postcss-custom-properties-14.0.6.tgz",
-      "integrity": "sha512-fTYSp3xuk4BUeVhxCSJdIPhDLpJfNakZKoiTDx7yRGCdlZrSJR7mWKVOBS4sBF+5poPQFMj2YdXx1VHItBGihQ==",
+      "version": "15.0.1",
+      "resolved": "https://registry.npmjs.org/postcss-custom-properties/-/postcss-custom-properties-15.0.1.tgz",
+      "integrity": "sha512-cuyq8sd8dLY0GLbelz1KB8IMIoDECo6RVXMeHeXY2Uw3Q05k/d1GVITdaKLsheqrHbnxlwxzSRZQQ5u+rNtbMg==",
       "dev": true,
       "funding": [
         {
@@ -16424,14 +16327,14 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "@csstools/cascade-layer-name-parser": "^2.0.5",
-        "@csstools/css-parser-algorithms": "^3.0.5",
-        "@csstools/css-tokenizer": "^3.0.4",
-        "@csstools/utilities": "^2.0.0",
+        "@csstools/cascade-layer-name-parser": "^3.0.0",
+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.0",
+        "@csstools/utilities": "^3.0.0",
         "postcss-value-parser": "^4.2.0"
       },
       "engines": {
-        "node": ">=18"
+        "node": ">=20.19.0"
       },
       "peerDependencies": {
         "postcss": "^8.4"
@@ -18071,13 +17974,6 @@
         "url": "https://github.com/chalk/ansi-styles?sponsor=1"
       }
     },
-    "node_modules/semantic-release/node_modules/argparse": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
-      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
-      "dev": true,
-      "license": "Python-2.0"
-    },
     "node_modules/semantic-release/node_modules/clean-stack": {
       "version": "5.3.0",
       "resolved": "https://registry.npmjs.org/clean-stack/-/clean-stack-5.3.0.tgz",
@@ -18127,33 +18023,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/semantic-release/node_modules/cosmiconfig": {
-      "version": "9.0.2",
-      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.2.tgz",
-      "integrity": "sha512-gtTZxTDau1wL7Y7zifc2dd8jHSK/k6BTx/2Xp/BpdlAdnlYWFVt7qhJqgwi7637yRwRQ3qL4ZidbB4I8tA5VOg==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "env-paths": "^2.2.1",
-        "import-fresh": "^3.3.0",
-        "js-yaml": "^4.1.0",
-        "parse-json": "^5.2.0"
-      },
-      "engines": {
-        "node": ">=14"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/d-fischer"
-      },
-      "peerDependencies": {
-        "typescript": ">=4.9.5"
-      },
-      "peerDependenciesMeta": {
-        "typescript": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/semantic-release/node_modules/emoji-regex": {
       "version": "10.6.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-10.6.0.tgz",
@@ -18267,29 +18136,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/semantic-release/node_modules/js-yaml": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.3.0.tgz",
-      "integrity": "sha512-1td788aAnnZ5qs7V2QIRl1owjtYpbKt749Y3xauqQgwIIGF/xXWz1wMTEBx5O3LK3lXLVuqXPdPxj2BoFHaW9Q==",
-      "dev": true,
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/puzrin"
-        },
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/nodeca"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "argparse": "^2.0.1"
-      },
-      "bin": {
-        "js-yaml": "bin/js-yaml.js"
-      }
-    },
     "node_modules/semantic-release/node_modules/lru-cache": {
       "version": "11.5.2",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.5.2.tgz",
@@ -19366,17 +19212,23 @@
       }
     },
     "node_modules/sugarss": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/sugarss/-/sugarss-4.0.1.tgz",
-      "integrity": "sha512-WCjS5NfuVJjkQzK10s8WOBY+hhDxxNt/N6ZaGwxFZ+wN3/lKKFSaaKUNecULcTTvE4urLcKaZFQD8vO0mOZujw==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/sugarss/-/sugarss-5.0.1.tgz",
+      "integrity": "sha512-ctS5RYCBVvPoZAnzIaX5QSShK8ZiZxD5HUqSxlusvEMC+QZQIPCPOIJg6aceFX+K2rf4+SH89eu++h1Zmsr2nw==",
       "dev": true,
+      "funding": [
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/postcss/"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
       "license": "MIT",
       "engines": {
-        "node": ">=12.0"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/postcss/"
+        "node": ">=18.0"
       },
       "peerDependencies": {
         "postcss": "^8.3.3"
diff --git a/package.json b/package.json
index 39be80b..f4e5c09 100644
--- a/package.json
+++ b/package.json
@@ -54,12 +54,12 @@
   },
   "dependencies": {
     "@rollup/pluginutils": "^5.0.0",
-    "cosmiconfig": "^8.0.0",
+    "cosmiconfig": "^9.0.0",
     "cssnano": "^7.0.0",
     "fs-extra": "^11.0.0",
     "icss-utils": "^5.1.0",
-    "mime-types": "^2.1.35",
-    "p-queue": "^8.0.0",
+    "mime-types": "^3.0.0",
+    "p-queue": "^9.0.0",
     "postcss": "^8.4.31",
     "postcss-modules-extract-imports": "^3.0.0",
     "postcss-modules-local-by-default": "^4.0.3",
@@ -90,7 +90,7 @@
     "@types/fs-extra": "^11.0.0",
     "@types/jest": "^29.0.0",
     "@types/less": "^3.0.6",
-    "@types/mime-types": "^2.1.4",
+    "@types/mime-types": "^3.0.0",
     "@types/node": "^22.0.0",
     "@types/resolve": "^1.20.5",
     "@types/stylus": "^0.48.42",
@@ -112,7 +112,7 @@
     "less": "^4.2.0",
     "lint-staged": "^15.0.0",
     "minireset.css": "^0.0.7",
-    "postcss-custom-properties": "^14.0.0",
+    "postcss-custom-properties": "^15.0.0",
     "prettier": "^3.0.0",
     "rollup": "^4.4.1",
     "rollup-plugin-dts": "^6.1.0",
@@ -122,7 +122,7 @@
     "semantic-release": "^25.0.1",
     "shx": "^0.3.4",
     "stylus": "^0.61.0",
-    "sugarss": "^4.0.1",
+    "sugarss": "^5.0.0",
     "ts-jest": "^29.0.0",
     "typedoc": "^0.27.0",
     "typedoc-plugin-missing-exports": "^3.0.0",
@@ -132,6 +132,6 @@
     "rollup": "^2.63.0 || ^3.0.0 || ^4.0.0"
   },
   "engines": {
-    "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+    "node": ">=20.19.0"
   }
 }
diff --git a/src/index.ts b/src/index.ts
index f7b1587..c1106c7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -15,8 +15,6 @@ import {
   inferSourceMapOption,
   inferHandlerOption,
   ensureUseOption,
-  ensurePCSSOption,
-  ensurePCSSPlugins,
 } from "./utils/options";
 
 export default (options: Options = {}): Plugin => {
@@ -47,14 +45,13 @@ export default (options: Options = {}): Plugin => {
   )
     throw new Error("`inject.treeshakeable` option is incompatible with `namedExports` option");
 
-  if (options.parser) loaderOpts.postcss.parser = ensurePCSSOption(options.parser, "parser");
+  if (options.parser) loaderOpts.postcss.parser = options.parser;
 
-  if (options.syntax) loaderOpts.postcss.syntax = ensurePCSSOption(options.syntax, "syntax");
+  if (options.syntax) loaderOpts.postcss.syntax = options.syntax;
 
-  if (options.stringifier)
-    loaderOpts.postcss.stringifier = ensurePCSSOption(options.stringifier, "stringifier");
+  if (options.stringifier) loaderOpts.postcss.stringifier = options.stringifier;
 
-  if (options.plugins) loaderOpts.postcss.plugins = ensurePCSSPlugins(options.plugins);
+  if (options.plugins) loaderOpts.postcss.plugins = options.plugins;
 
   const loaders = new Loaders({
     use: [["postcss", loaderOpts], ...ensureUseOption(options), ["sourcemap", {}]],
diff --git a/src/loaders/postcss/config.ts b/src/loaders/postcss/config.ts
index a1aa48f..e62904c 100644
--- a/src/loaders/postcss/config.ts
+++ b/src/loaders/postcss/config.ts
@@ -29,7 +29,9 @@ export default async function (
 
   type Found = { config: Config | ((ctx: Record<string, unknown>) => Config); isEmpty?: boolean };
   const searchPath = config.path ? path.resolve(config.path) : dir;
-  const found: Found | null = await cosmiconfig("postcss").search(searchPath);
+  const found: Found | null = await cosmiconfig("postcss", { searchStrategy: "global" }).search(
+    searchPath,
+  );
 
   if (!found || found.isEmpty) return { plugins: [], options: {} };
 
@@ -43,10 +45,10 @@ export default async function (
         })
       : found.config;
 
-  const result: Result = { plugins: ensurePCSSPlugins(plugins), options: {} };
-  if (parser) result.options.parser = ensurePCSSOption(parser, "parser");
-  if (syntax) result.options.syntax = ensurePCSSOption(syntax, "syntax");
-  if (stringifier) result.options.stringifier = ensurePCSSOption(stringifier, "stringifier");
+  const result: Result = { plugins: await ensurePCSSPlugins(plugins), options: {} };
+  if (parser) result.options.parser = await ensurePCSSOption(parser, "parser");
+  if (syntax) result.options.syntax = await ensurePCSSOption(syntax, "syntax");
+  if (stringifier) result.options.stringifier = await ensurePCSSOption(stringifier, "stringifier");
 
   return result;
 }
diff --git a/src/loaders/postcss/index.ts b/src/loaders/postcss/index.ts
index 0ec6122..3dce86a 100644
--- a/src/loaders/postcss/index.ts
+++ b/src/loaders/postcss/index.ts
@@ -8,6 +8,7 @@ import { PostCSSLoaderOptions, InjectOptions } from "../../types";
 import { humanlizePath, normalizePath } from "../../utils/path";
 import { mm } from "../../utils/sourcemap";
 import { resolveAsync } from "../../utils/resolve";
+import { ensurePCSSOption, ensurePCSSPlugins } from "../../utils/options";
 import safeId from "../../utils/safe-id";
 import { Loader } from "../types";
 import loadConfig from "./config";
@@ -67,12 +68,21 @@ const loader: Loader<PostCSSLoaderOptions> = {
 
     delete postcssOpts.plugins;
 
+    // Resolve string-based parser/syntax/stringifier/plugins lazily (async)
+    if (typeof postcssOpts.parser === "string")
+      postcssOpts.parser = await ensurePCSSOption(postcssOpts.parser, "parser");
+    if (typeof postcssOpts.syntax === "string")
+      postcssOpts.syntax = await ensurePCSSOption(postcssOpts.syntax, "syntax");
+    if (typeof postcssOpts.stringifier === "string")
+      postcssOpts.stringifier = await ensurePCSSOption(postcssOpts.stringifier, "stringifier");
+
     if (options.import)
       plugins.push(postcssImport({ extensions: options.extensions, ...options.import }));
 
     if (options.url) plugins.push(postcssUrl({ inline: Boolean(options.inject), ...options.url }));
 
-    if (options.postcss.plugins) plugins.push(...options.postcss.plugins);
+    if (options.postcss.plugins)
+      plugins.push(...(await ensurePCSSPlugins(options.postcss.plugins)));
 
     if (config.plugins) plugins.push(...config.plugins);
 
@@ -96,7 +106,7 @@ const loader: Loader<PostCSSLoaderOptions> = {
     // Avoid PostCSS warning
     if (plugins.length === 0) plugins.push(postcssNoop);
 
-    const res = await postcss(plugins).process(code, postcssOpts);
+    const res = await postcss(plugins).process(code, postcssOpts as ProcessOptions);
 
     for (const msg of res.messages)
       switch (msg.type) {
diff --git a/src/types.ts b/src/types.ts
index e623731..68992f0 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -53,13 +53,13 @@ export interface PostCSSLoaderOptions extends Record<string, unknown> {
   /** Options for PostCSS processor */
   postcss: {
     /** @see {@link Options.parser} */
-    parser?: postcss.Parser;
+    parser?: string | postcss.Parser;
     /** @see {@link Options.syntax} */
-    syntax?: postcss.Syntax;
+    syntax?: string | postcss.Syntax;
     /** @see {@link Options.stringifier} */
-    stringifier?: postcss.Stringifier;
+    stringifier?: string | postcss.Stringifier;
     /** @see {@link Options.plugins} */
-    plugins?: postcss.AcceptedPlugin[];
+    plugins?: Options["plugins"];
   };
 }
 
diff --git a/src/utils/load-module.ts b/src/utils/load-module.ts
index f576015..6bd6a53 100644
--- a/src/utils/load-module.ts
+++ b/src/utils/load-module.ts
@@ -1,4 +1,4 @@
-import { resolveSync, ResolveOpts } from "./resolve";
+import { resolveSync, ResolveOpts, packageFilterBuilder } from "./resolve";
 import { createRequire } from "node:module";
 const require = createRequire(import.meta.url);
 
@@ -9,15 +9,23 @@ const options: ResolveOpts = {
   basedirs: [process.cwd()],
   extensions: [".js", ".mjs", ".cjs", ".json"],
   preserveSymlinks: false,
-  packageFilter: pkg => pkg,
+  packageFilter: packageFilterBuilder(),
 };
 
-export default function (moduleId: string): unknown {
+export default async function (moduleId: string): Promise<unknown> {
   if (loaded[moduleId]) return loaded[moduleId];
   if (loaded[moduleId] === null) return;
 
   try {
-    loaded[moduleId] = require(resolveSync([moduleId, `./${moduleId}`], options));
+    const resolved = resolveSync([moduleId, `./${moduleId}`], options);
+    try {
+      loaded[moduleId] = require(resolved);
+    } catch {
+      // ESM module that cannot be require()d (e.g. .mjs in jest VM context)
+
+      const mod = (await import(resolved)) as { default: unknown };
+      loaded[moduleId] = mod.default;
+    }
   } catch {
     loaded[moduleId] = null;
     return;
diff --git a/src/utils/options.ts b/src/utils/options.ts
index ba30eda..e12b14f 100644
--- a/src/utils/options.ts
+++ b/src/utils/options.ts
@@ -68,14 +68,14 @@ export function ensureUseOption(opts: Options): [string, Record<string, unknown>
 }
 
 type PCSSOption = "parser" | "syntax" | "stringifier" | "plugin";
-export function ensurePCSSOption<T>(option: T | string, type: PCSSOption): T {
+export async function ensurePCSSOption<T>(option: T | string, type: PCSSOption): Promise<T> {
   if (typeof option !== "string") return option;
-  const module = loadModule(option);
+  const module = await loadModule(option);
   if (!module) throw new Error(`Unable to load PostCSS ${type} \`${option}\``);
   return module as T;
 }
 
-export function ensurePCSSPlugins(plugins: Options["plugins"]): AcceptedPlugin[] {
+export async function ensurePCSSPlugins(plugins: Options["plugins"]): Promise<AcceptedPlugin[]> {
   if (plugins === undefined) return [];
   else if (typeof plugins !== "object")
     throw new TypeError("`plugins` option must be an array or an object!");
@@ -85,15 +85,18 @@ export function ensurePCSSPlugins(plugins: Options["plugins"]): AcceptedPlugin[]
     if (!p) continue;
 
     if (!Array.isArray(p)) {
-      ps.push(ensurePCSSOption(p, "plugin"));
+      // eslint-disable-next-line no-await-in-loop
+      ps.push(await ensurePCSSOption(p, "plugin"));
       continue;
     }
 
     const [plug, opts] = p;
     if (opts) {
-      ps.push(ensurePCSSOption(plug, "plugin")(opts));
+      // eslint-disable-next-line no-await-in-loop
+      ps.push((await ensurePCSSOption(plug, "plugin"))(opts));
     } else {
-      ps.push(ensurePCSSOption(plug, "plugin"));
+      // eslint-disable-next-line no-await-in-loop
+      ps.push(await ensurePCSSOption(plug, "plugin"));
     }
   }
 
diff --git a/src/utils/resolve.ts b/src/utils/resolve.ts
index c5cc7a6..acf9ee1 100644
--- a/src/utils/resolve.ts
+++ b/src/utils/resolve.ts
@@ -48,6 +48,10 @@ export const packageFilterBuilder: PackageFilterBuilderFn = (opts = {}) => {
         pkg.main = resolvedExport;
         return pkg;
       }
+      if (Array.isArray(resolvedExport) && resolvedExport.length > 0) {
+        pkg.main = resolvedExport[0];
+        return pkg;
+      }
     } catch {
       /* noop */
     }