diff --git a/package-lock.json b/package-lock.json
index 201d282a8b7..22b271e440e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7767,9 +7767,15 @@
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-      "version": "3.3.4",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.4.tgz",
-      "integrity": "sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==",
+      "version": "3.3.6",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.6.tgz",
+      "integrity": "sha512-BGcqMMJuToF7i1rt+2PWSNVnWIkGCU78jBG3RxO/bZlnZPK2Cmi2QaffxGO/2RvWi9sL+FAiRiXMgsyxQ1DIDA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
       "bin": {
         "nanoid": "bin/nanoid.cjs"
       },
@@ -8319,9 +8325,9 @@
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-      "version": "8.4.19",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.19.tgz",
-      "integrity": "sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "funding": [
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@@ -8330,10 +8336,14 @@
         {
           "type": "tidelift",
           "url": "https://tidelift.com/funding/github/npm/postcss"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
         }
       ],
       "dependencies": {
-        "nanoid": "^3.3.4",
+        "nanoid": "^3.3.6",
         "picocolors": "^1.0.0",
         "source-map-js": "^1.0.2"
       },
@@ -11832,7 +11842,7 @@
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         "mini-css-extract-plugin": "^2.4.4",
         "pkg-dir": "^4.2.0",
-        "postcss": "^8.2.8",
+        "postcss": "^8.4.31",
         "postcss-loader": "^6.2.0",
         "sass": "^1.26.8",
         "sass-loader": "^12.3.0",
@@ -13011,7 +13021,7 @@
         "json-minimizer-webpack-plugin": "^3.1.1",
         "mini-css-extract-plugin": "^2.4.4",
         "pkg-dir": "^4.2.0",
-        "postcss": "^8.2.8",
+        "postcss": "^8.4.31",
         "postcss-loader": "^6.2.0",
         "sass": "^1.26.8",
         "sass-loader": "^12.3.0",
@@ -17619,9 +17629,9 @@
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     "nanoid": {
-      "version": "3.3.4",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.4.tgz",
-      "integrity": "sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw=="
+      "version": "3.3.6",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.6.tgz",
+      "integrity": "sha512-BGcqMMJuToF7i1rt+2PWSNVnWIkGCU78jBG3RxO/bZlnZPK2Cmi2QaffxGO/2RvWi9sL+FAiRiXMgsyxQ1DIDA=="
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     "natural-compare": {
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@@ -17999,11 +18009,11 @@
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     },
     "postcss": {
-      "version": "8.4.19",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.19.tgz",
-      "integrity": "sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "requires": {
-        "nanoid": "^3.3.4",
+        "nanoid": "^3.3.6",
         "picocolors": "^1.0.0",
         "source-map-js": "^1.0.2"
       }
diff --git a/packages/craftcms-webpack/package.json b/packages/craftcms-webpack/package.json
index 9d9ee8837ba..375598334ac 100644
--- a/packages/craftcms-webpack/package.json
+++ b/packages/craftcms-webpack/package.json
@@ -44,7 +44,7 @@
     "json-minimizer-webpack-plugin": "^3.1.1",
     "mini-css-extract-plugin": "^2.4.4",
     "pkg-dir": "^4.2.0",
-    "postcss": "^8.2.8",
+    "postcss": "^8.4.31",
     "postcss-loader": "^6.2.0",
     "sass": "^1.26.8",
     "sass-loader": "^12.3.0",