diff --git a/package-lock.json b/package-lock.json
index 625985f..c56eafb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -36,7 +36,7 @@
                 "html-webpack-plugin": "^5.6.0",
                 "mini-css-extract-plugin": "^2.7.6",
                 "pack.gl": "^0.0.40",
-                "postcss-loader": "^7.3.4",
+                "postcss-loader": "^8.1.1",
                 "postcss-preset-env": "^10.0.0",
                 "prettier": "^3.1.1",
                 "sass": "^1.69.7",
@@ -6105,15 +6105,15 @@
             "dev": true
         },
         "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": "9.0.0",
+            "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.0.tgz",
+            "integrity": "sha512-itvL5h8RETACmOTFc4UfIyB2RfEHi71Ax6E/PivVxq9NseKbOWpeyHEOIbmAw1rs8Ak0VursQNww7lf7YtUwzg==",
             "dev": true,
             "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"
@@ -6130,15 +6130,6 @@
                 }
             }
         },
-        "node_modules/cosmiconfig/node_modules/path-type": {
-            "version": "4.0.0",
-            "resolved": "https://registry.npmjs.org/path-type/-/path-type-4.0.0.tgz",
-            "integrity": "sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==",
-            "dev": true,
-            "engines": {
-                "node": ">=8"
-            }
-        },
         "node_modules/create-require": {
             "version": "1.1.1",
             "resolved": "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz",
@@ -14407,25 +14398,34 @@
             }
         },
         "node_modules/postcss-loader": {
-            "version": "7.3.4",
-            "resolved": "https://registry.npmjs.org/postcss-loader/-/postcss-loader-7.3.4.tgz",
-            "integrity": "sha512-iW5WTTBSC5BfsBJ9daFMPVrLT36MrNiC6fqOZTTaHjBNX6Pfd5p+hSBqe/fEeNd7pc13QiAyGt7VdGMw4eRC4A==",
+            "version": "8.1.1",
+            "resolved": "https://registry.npmjs.org/postcss-loader/-/postcss-loader-8.1.1.tgz",
+            "integrity": "sha512-0IeqyAsG6tYiDRCYKQJLAmgQr47DX6N7sFSWvQxt6AcupX8DIdmykuk/o/tx0Lze3ErGHJEp5OSRxrelC6+NdQ==",
             "dev": true,
             "dependencies": {
-                "cosmiconfig": "^8.3.5",
+                "cosmiconfig": "^9.0.0",
                 "jiti": "^1.20.0",
                 "semver": "^7.5.4"
             },
             "engines": {
-                "node": ">= 14.15.0"
+                "node": ">= 18.12.0"
             },
             "funding": {
                 "type": "opencollective",
                 "url": "https://opencollective.com/webpack"
             },
             "peerDependencies": {
+                "@rspack/core": "0.x || 1.x",
                 "postcss": "^7.0.0 || ^8.0.1",
                 "webpack": "^5.0.0"
+            },
+            "peerDependenciesMeta": {
+                "@rspack/core": {
+                    "optional": true
+                },
+                "webpack": {
+                    "optional": true
+                }
             }
         },
         "node_modules/postcss-loader/node_modules/semver": {
diff --git a/package.json b/package.json
index a1e5aae..d18bda0 100644
--- a/package.json
+++ b/package.json
@@ -75,7 +75,7 @@
         "html-webpack-plugin": "^5.6.0",
         "mini-css-extract-plugin": "^2.7.6",
         "pack.gl": "^0.0.40",
-        "postcss-loader": "^7.3.4",
+        "postcss-loader": "^8.1.1",
         "postcss-preset-env": "^10.0.0",
         "prettier": "^3.1.1",
         "sass": "^1.69.7",