diff --git a/sites/upsun/package-lock.json b/sites/upsun/package-lock.json
index 02b71627fc..8b82944b3e 100644
--- a/sites/upsun/package-lock.json
+++ b/sites/upsun/package-lock.json
@@ -31,7 +31,7 @@
         "eslint": "^8.34.0",
         "eslint-plugin-mdx": "^2.0.5",
         "p-limit": "^4.0.0",
-        "postcss": "^8.4.31",
+        "postcss": "^8.5.23",
         "postcss-cli": "^10.1.0",
         "postcss-import": "^16.1.0",
         "pshregistry-parser": "^1.5.7",
@@ -10249,9 +10249,9 @@
       }
     },
     "node_modules/nanoid": {
-      "version": "3.3.8",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.8.tgz",
-      "integrity": "sha512-WNLf5Sd8oZxOm+TzppcYk8gVOgP+l58xNy58D0nbUnOxOWRWvlcCV4kUF7ltmI6PsrLl/BgKEyS4mqsGChFN0w==",
+      "version": "3.3.16",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.16.tgz",
+      "integrity": "sha512-bzlKTyNJ7+LdGIIwy8ijFpIqEQIvafahV7eYykJ8Cvh42EdJeODoJ6gUJXpQJvej1BddH8OqTXZNE/KfbWAu8Q==",
       "funding": [
         {
           "type": "github",
@@ -10869,9 +10869,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.31",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
-      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
+      "version": "8.5.23",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.23.tgz",
+      "integrity": "sha512-g50586zr4bZmwFiTlflMu8E0bDTb5I5gertgwAKmsdUlTQIhZtunzUlD1WSzwcVWPoAVpsrA6vlfCD7oXvRwgg==",
       "funding": [
         {
           "type": "opencollective",
@@ -10887,9 +10887,9 @@
         }
       ],
       "dependencies": {
-        "nanoid": "^3.3.6",
-        "picocolors": "^1.0.0",
-        "source-map-js": "^1.0.2"
+        "nanoid": "^3.3.16",
+        "picocolors": "^1.1.1",
+        "source-map-js": "^1.2.1"
       },
       "engines": {
         "node": "^10 || ^12 || >=14"
@@ -13802,8 +13802,9 @@
       }
     },
     "node_modules/source-map-js": {
-      "version": "1.0.2",
-      "license": "BSD-3-Clause",
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
+      "integrity": "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==",
       "engines": {
         "node": ">=0.10.0"
       }
@@ -20109,7 +20110,7 @@
         "style-loader": "^3.3.1",
         "webpack": "^5.94.0",
         "webpack-cli": "^5.0.1",
-        "webpack-dev-server": "5.2.5",
+        "webpack-dev-server": "^5.2.5",
         "webpack-merge": "^5.8.0"
       },
       "dependencies": {
@@ -23085,9 +23086,9 @@
       }
     },
     "nanoid": {
-      "version": "3.3.8",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.8.tgz",
-      "integrity": "sha512-WNLf5Sd8oZxOm+TzppcYk8gVOgP+l58xNy58D0nbUnOxOWRWvlcCV4kUF7ltmI6PsrLl/BgKEyS4mqsGChFN0w=="
+      "version": "3.3.16",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.16.tgz",
+      "integrity": "sha512-bzlKTyNJ7+LdGIIwy8ijFpIqEQIvafahV7eYykJ8Cvh42EdJeODoJ6gUJXpQJvej1BddH8OqTXZNE/KfbWAu8Q=="
     },
     "natural-compare": {
       "version": "1.4.0",
@@ -23491,13 +23492,13 @@
       }
     },
     "postcss": {
-      "version": "8.4.31",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
-      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
+      "version": "8.5.23",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.23.tgz",
+      "integrity": "sha512-g50586zr4bZmwFiTlflMu8E0bDTb5I5gertgwAKmsdUlTQIhZtunzUlD1WSzwcVWPoAVpsrA6vlfCD7oXvRwgg==",
       "requires": {
-        "nanoid": "^3.3.6",
-        "picocolors": "^1.0.0",
-        "source-map-js": "^1.0.2"
+        "nanoid": "^3.3.16",
+        "picocolors": "^1.1.1",
+        "source-map-js": "^1.2.1"
       }
     },
     "postcss-calc": {
@@ -25549,7 +25550,9 @@
       "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
     },
     "source-map-js": {
-      "version": "1.0.2"
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
+      "integrity": "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA=="
     },
     "source-map-support": {
       "version": "0.5.21",
diff --git a/sites/upsun/package.json b/sites/upsun/package.json
index 7cd7f84845..af58195c12 100644
--- a/sites/upsun/package.json
+++ b/sites/upsun/package.json
@@ -23,7 +23,7 @@
     "eslint": "^8.34.0",
     "eslint-plugin-mdx": "^2.0.5",
     "p-limit": "^4.0.0",
-    "postcss": "^8.4.31",
+    "postcss": "^8.5.23",
     "postcss-cli": "^10.1.0",
     "postcss-import": "^16.1.0",
     "pshregistry-parser": "^1.5.7",