diff --git a/package-lock.json b/package-lock.json
index 4f22faea..69fbebe6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3111,22 +3111,14 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.3.11",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.11.tgz",
-      "integrity": "sha512-hCmlUAIlUiav8Xdqw3Io4LcpA1DOt7h3LSTAC4G6JGHFFaWzI6qvFt9oilvl8BmkbBRX1IhM90ZAmpk68zccQA==",
+      "version": "8.4.5",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.5.tgz",
+      "integrity": "sha512-jBDboWM8qpaqwkMwItqTQTiFikhs/67OYVvblFFTM7MrZjt6yMKd6r2kgXizEbTTljacm4NldIlZnhbjr84QYg==",
       "dev": true,
       "requires": {
         "nanoid": "^3.1.30",
         "picocolors": "^1.0.0",
-        "source-map-js": "^0.6.2"
-      },
-      "dependencies": {
-        "picocolors": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
-          "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
-          "dev": true
-        }
+        "source-map-js": "^1.0.1"
       }
     },
     "postcss-cli": {
@@ -3491,9 +3483,9 @@
       "dev": true
     },
     "source-map-js": {
-      "version": "0.6.2",
-      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-0.6.2.tgz",
-      "integrity": "sha512-/3GptzWzu0+0MBQFrDKzw/DvvMTUORvgY6k6jd/VS6iCR4RDTKWH6v6WPwQoUO8667uQEf9Oe38DxAYWY5F/Ug==",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.1.tgz",
+      "integrity": "sha512-4+TN2b3tqOCd/kaGRJ/sTYA0tR0mdXx26ipdolxcwtJVqEnqNYvlCAt1q3ypy4QMlYus+Zh34RNtYLoq2oQ4IA==",
       "dev": true
     },
     "spdx-correct": {
diff --git a/package.json b/package.json
index 32d41904..657519cf 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   "devDependencies": {
     "autoprefixer": "^10.4.0",
     "eslint-plugin-compat": "^4.0.0",
-    "postcss": "^8.3.11",
+    "postcss": "^8.4.5",
     "postcss-cli": "^9.1.0",
     "prettier": "2.5.0",
     "xo": "^0.46.4"