diff --git a/package-lock.json b/package-lock.json
index ee10fc9..fb243a6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "grunt-contrib-jshint": "^3.2.0",
         "grunt-contrib-nodeunit": "^5.0.0",
         "load-grunt-tasks": "^5.1.0",
-        "postcss": "^8.5.6",
+        "postcss": "^8.5.8",
         "postcss-scss": "^4.0.9"
       },
       "engines": {
@@ -3359,9 +3359,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.6",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.6.tgz",
-      "integrity": "sha512-3Ybi1tAuwAP9s0r1UQ2J4n5Y0G05bJkpUIO0/bI9MhwmD70S5aTWbXGBwxHrelT+XM1k6dM0pk+SwNkpTRN7Pg==",
+      "version": "8.5.8",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.8.tgz",
+      "integrity": "sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==",
       "dev": true,
       "funding": [
         {
@@ -9154,9 +9154,9 @@
       }
     },
     "postcss": {
-      "version": "8.5.6",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.6.tgz",
-      "integrity": "sha512-3Ybi1tAuwAP9s0r1UQ2J4n5Y0G05bJkpUIO0/bI9MhwmD70S5aTWbXGBwxHrelT+XM1k6dM0pk+SwNkpTRN7Pg==",
+      "version": "8.5.8",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.8.tgz",
+      "integrity": "sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==",
       "dev": true,
       "requires": {
         "nanoid": "^3.3.11",
diff --git a/package.json b/package.json
index bc9047e..8c06ebb 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "grunt-contrib-jshint": "^3.2.0",
     "grunt-contrib-nodeunit": "^5.0.0",
     "load-grunt-tasks": "^5.1.0",
-    "postcss": "^8.5.6",
+    "postcss": "^8.5.8",
     "postcss-scss": "^4.0.9"
   },
   "peerDependencies": {