diff --git a/package-lock.json b/package-lock.json
index 94b42490..0e6817aa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -52,7 +52,7 @@
         "mkdirp": "1.0.4",
         "nets": "3.2.0",
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-        "postcss-loader": "4.3.0",
+        "postcss-loader": "8.1.1",
         "postcss-simple-vars": "5.0.2",
         "react": "16.14.0",
         "react-dom": "16.14.0",
@@ -3157,6 +3157,63 @@
       "dev": true,
       "license": "ISC"
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+    "node_modules/@scratch/scratch-gui/node_modules/postcss-loader": {
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+      "resolved": "https://registry.npmjs.org/postcss-loader/-/postcss-loader-4.3.0.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cosmiconfig": "^7.0.0",
+        "klona": "^2.0.4",
+        "loader-utils": "^2.0.0",
+        "schema-utils": "^3.0.0",
+        "semver": "^7.3.4"
+      },
+      "engines": {
+        "node": ">= 10.13.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/webpack"
+      },
+      "peerDependencies": {
+        "postcss": "^7.0.0 || ^8.0.1",
+        "webpack": "^4.0.0 || ^5.0.0"
+      }
+    },
+    "node_modules/@scratch/scratch-gui/node_modules/schema-utils": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-3.3.0.tgz",
+      "integrity": "sha512-pN/yOAvcC+5rQ5nERGuwrjLlYvLTbCibnZ1I7B1LaiAz9BRBlE9GMgE/eqV30P7aJQUf7Ddimy/RsbYO/GrVGg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/json-schema": "^7.0.8",
+        "ajv": "^6.12.5",
+        "ajv-keywords": "^3.5.2"
+      },
+      "engines": {
+        "node": ">= 10.13.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/webpack"
+      }
+    },
+    "node_modules/@scratch/scratch-gui/node_modules/semver": {
+      "version": "7.7.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.1.tgz",
+      "integrity": "sha512-hlq8tAfn0m/61p4BVRcPzIGr6LKiMwo4VM6dGi6pt4qcRkmNzTcWq6eCEjEh+qXjkMDvPlOFFSGwQjoEa6gyMA==",
+      "dev": true,
+      "license": "ISC",
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/@scratch/scratch-render": {
       "version": "11.2.0-feature-parity.1",
       "resolved": "https://registry.npmjs.org/@scratch/scratch-render/-/scratch-render-11.2.0-feature-parity.1.tgz",
@@ -12242,6 +12299,16 @@
         "node": ">= 10.13.0"
       }
     },
+    "node_modules/jiti": {
+      "version": "1.21.7",
+      "resolved": "https://registry.npmjs.org/jiti/-/jiti-1.21.7.tgz",
+      "integrity": "sha512-/imKNG4EbWNrVjoNC/1H5/9GFy+tqjGBHCaSsN+P2RnPqjsLmv6UD3Ej+Kj8nBWaRAwyk7kK5ZUc+OEatnTR3A==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "jiti": "bin/jiti.js"
+      }
+    },
     "node_modules/joi": {
       "version": "17.13.3",
       "resolved": "https://registry.npmjs.org/joi/-/joi-17.13.3.tgz",
@@ -14962,47 +15029,62 @@
       "license": "MIT"
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-      "resolved": "https://registry.npmjs.org/postcss-loader/-/postcss-loader-4.3.0.tgz",
-      "integrity": "sha512-M/dSoIiNDOo8Rk0mUqoj4kpGq91gcxCfb9PoyZVdZ76/AuhxylHDYZblNE8o+EQ9AMSASeMFEKxZf5aU6wlx1Q==",
+      "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,
       "license": "MIT",
       "dependencies": {
-        "cosmiconfig": "^7.0.0",
-        "klona": "^2.0.4",
-        "loader-utils": "^2.0.0",
-        "schema-utils": "^3.0.0",
-        "semver": "^7.3.4"
+        "cosmiconfig": "^9.0.0",
+        "jiti": "^1.20.0",
+        "semver": "^7.5.4"
       },
       "engines": {
-        "node": ">= 10.13.0"
+        "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": "^4.0.0 || ^5.0.0"
+        "webpack": "^5.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@rspack/core": {
+          "optional": true
+        },
+        "webpack": {
+          "optional": true
+        }
       }
     },
-    "node_modules/postcss-loader/node_modules/schema-utils": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-3.3.0.tgz",
-      "integrity": "sha512-pN/yOAvcC+5rQ5nERGuwrjLlYvLTbCibnZ1I7B1LaiAz9BRBlE9GMgE/eqV30P7aJQUf7Ddimy/RsbYO/GrVGg==",
+    "node_modules/postcss-loader/node_modules/cosmiconfig": {
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.0.tgz",
+      "integrity": "sha512-itvL5h8RETACmOTFc4UfIyB2RfEHi71Ax6E/PivVxq9NseKbOWpeyHEOIbmAw1rs8Ak0VursQNww7lf7YtUwzg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@types/json-schema": "^7.0.8",
-        "ajv": "^6.12.5",
-        "ajv-keywords": "^3.5.2"
+        "env-paths": "^2.2.1",
+        "import-fresh": "^3.3.0",
+        "js-yaml": "^4.1.0",
+        "parse-json": "^5.2.0"
       },
       "engines": {
-        "node": ">= 10.13.0"
+        "node": ">=14"
       },
       "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/webpack"
+        "url": "https://github.com/sponsors/d-fischer"
+      },
+      "peerDependencies": {
+        "typescript": ">=4.9.5"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
       }
     },
     "node_modules/postcss-loader/node_modules/semver": {
diff --git a/package.json b/package.json
index 7f561acc..0021dfca 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "mkdirp": "1.0.4",
     "nets": "3.2.0",
     "postcss-import": "12.0.1",
-    "postcss-loader": "4.3.0",
+    "postcss-loader": "8.1.1",
     "postcss-simple-vars": "5.0.2",
     "react": "16.14.0",
     "react-dom": "16.14.0",