diff --git a/e2e-package-managers/yarn/package.json b/e2e-package-managers/yarn/package.json
index 83ac61d38..441f2e594 100644
--- a/e2e-package-managers/yarn/package.json
+++ b/e2e-package-managers/yarn/package.json
@@ -4,8 +4,8 @@
 	"private": true,
 	"description": "Can you use yarn with our plugins?",
 	"devDependencies": {
-		"postcss": "^8.5.4",
-		"postcss-preset-env": "^10.2.1"
+		"postcss": "^8.5.5",
+		"postcss-preset-env": "^10.2.3"
 	},
 	"volta": {
 		"extends": "../../package.json",
diff --git a/e2e/browserslist/package-json/package.json b/e2e/browserslist/package-json/package.json
index 0dd51b8aa..6e4a2c04b 100644
--- a/e2e/browserslist/package-json/package.json
+++ b/e2e/browserslist/package-json/package.json
@@ -7,7 +7,7 @@
 		"test": "BROWSERSLIST_ENV=development node ./index.mjs && BROWSERSLIST_ENV=production node ./index.mjs && BROWSERSLIST_ENV=legacy-edge node ./index.mjs && node ./use-plugin-option.mjs"
 	},
 	"devDependencies": {
-		"postcss": "^8.5.4",
+		"postcss": "^8.5.5",
 		"postcss-preset-env": "file:../../../plugin-packs/postcss-preset-env"
 	},
 	"browserslist": {
diff --git a/e2e/package-lock.json b/e2e/package-lock.json
index f00abcecb..8374a1907 100644
--- a/e2e/package-lock.json
+++ b/e2e/package-lock.json
@@ -16,7 +16,7 @@
 			]
 		},
 		"../plugin-packs/postcss-preset-env": {
-			"version": "10.2.0",
+			"version": "10.2.3",
 			"funding": [
 				{
 					"type": "github",
@@ -41,7 +41,7 @@
 				"@csstools/postcss-hwb-function": "^4.0.10",
 				"@csstools/postcss-ic-unit": "^4.0.2",
 				"@csstools/postcss-initial": "^2.0.1",
-				"@csstools/postcss-is-pseudo-class": "^5.0.1",
+				"@csstools/postcss-is-pseudo-class": "^5.0.3",
 				"@csstools/postcss-light-dark-function": "^2.0.9",
 				"@csstools/postcss-logical-float-and-clear": "^3.0.0",
 				"@csstools/postcss-logical-overflow": "^2.0.0",
@@ -63,7 +63,7 @@
 				"@csstools/postcss-trigonometric-functions": "^4.0.9",
 				"@csstools/postcss-unset-value": "^4.0.0",
 				"autoprefixer": "^10.4.21",
-				"browserslist": "^4.24.5",
+				"browserslist": "^4.25.0",
 				"css-blank-pseudo": "^7.0.1",
 				"css-has-pseudo": "^7.0.2",
 				"css-prefers-color-scheme": "^10.0.0",
@@ -74,7 +74,7 @@
 				"postcss-color-hex-alpha": "^10.0.0",
 				"postcss-color-rebeccapurple": "^10.0.0",
 				"postcss-custom-media": "^11.0.6",
-				"postcss-custom-properties": "^14.0.5",
+				"postcss-custom-properties": "^14.0.6",
 				"postcss-custom-selectors": "^8.0.5",
 				"postcss-dir-pseudo-class": "^9.0.1",
 				"postcss-double-position-gradients": "^6.0.2",
@@ -85,7 +85,7 @@
 				"postcss-image-set-function": "^7.0.0",
 				"postcss-lab-function": "^7.0.10",
 				"postcss-logical": "^8.1.0",
-				"postcss-nesting": "^13.0.1",
+				"postcss-nesting": "^13.0.2",
 				"postcss-opacity-percentage": "^3.0.0",
 				"postcss-overflow-shorthand": "^6.0.0",
 				"postcss-page-break": "^3.0.4",
@@ -97,7 +97,7 @@
 			"devDependencies": {
 				"@csstools/postcss-bundler": "*",
 				"@csstools/postcss-tape": "*",
-				"@webref/css": "^6.21.1"
+				"@webref/css": "^6.22.0"
 			},
 			"engines": {
 				"node": ">=18"
@@ -187,7 +187,7 @@
 				"@csstools/postcss-tape": "*",
 				"open-props": "^1.7.15",
 				"postcss-custom-media": "^11.0.6",
-				"postcss-custom-properties": "^14.0.5"
+				"postcss-custom-properties": "^14.0.6"
 			},
 			"engines": {
 				"node": ">=18"
@@ -230,7 +230,7 @@
 			"name": "@csstools/e2e--browserslist--package-json",
 			"version": "0.0.0",
 			"devDependencies": {
-				"postcss": "^8.5.4",
+				"postcss": "^8.5.5",
 				"postcss-preset-env": "file:../../../plugin-packs/postcss-preset-env"
 			}
 		},
@@ -1771,9 +1771,9 @@
 			}
 		},
 		"node_modules/postcss": {
-			"version": "8.5.4",
-			"resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.4.tgz",
-			"integrity": "sha512-QSa9EBe+uwlGTFmHsPKokv3B/oEMQZxfqW0QqNCyhpa6mB1afzulwn8hihglqAb2pOw+BJgNlmXQ8la2VeHB7w==",
+			"version": "8.5.5",
+			"resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.5.tgz",
+			"integrity": "sha512-d/jtm+rdNT8tpXuHY5MMtcbJFBkhXE6593XVR9UoGCH8jSFGci7jGvMGH5RYd5PBJW+00NZQt6gf7CbagJCrhg==",
 			"funding": [
 				{
 					"type": "opencollective",
@@ -2800,7 +2800,7 @@
 			"name": "@csstools/e2e--webpack--bundle-through",
 			"version": "0.0.0",
 			"dependencies": {
-				"postcss": "^8.5.4",
+				"postcss": "^8.5.5",
 				"postcss-preset-env": "file:../../../plugin-packs/postcss-preset-env",
 				"webpack": "^5.99.9",
 				"webpack-cli": "^6.0.1"
@@ -2811,7 +2811,7 @@
 			"version": "0.0.0",
 			"dependencies": {
 				"css-loader": "^7.1.1",
-				"postcss": "^8.5.4",
+				"postcss": "^8.5.5",
 				"postcss-loader": "^8.1.1",
 				"postcss-preset-env": "file:../../../plugin-packs/postcss-preset-env",
 				"style-loader": "^4.0.0",
diff --git a/e2e/webpack/bundle-through/package.json b/e2e/webpack/bundle-through/package.json
index 5d0087745..01c2ba8b9 100644
--- a/e2e/webpack/bundle-through/package.json
+++ b/e2e/webpack/bundle-through/package.json
@@ -9,7 +9,7 @@
 		"test": "node ./dist/bundle-from-mjs.cjs && node ./dist/bundle-from-cjs.cjs "
 	},
 	"dependencies": {
-		"postcss": "^8.5.4",
+		"postcss": "^8.5.5",
 		"webpack": "^5.99.9",
 		"webpack-cli": "^6.0.1",
 		"postcss-preset-env": "file:../../../plugin-packs/postcss-preset-env"
diff --git a/e2e/webpack/postcss-loader/package.json b/e2e/webpack/postcss-loader/package.json
index f8d1704be..642db0810 100644
--- a/e2e/webpack/postcss-loader/package.json
+++ b/e2e/webpack/postcss-loader/package.json
@@ -8,7 +8,7 @@
 		"build": "webpack --config webpack.config.js"
 	},
 	"dependencies": {
-		"postcss": "^8.5.4",
+		"postcss": "^8.5.5",
 		"webpack": "^5.99.9",
 		"webpack-cli": "^6.0.1",
 		"postcss-loader": "^8.1.1",
diff --git a/sites/package-lock.json b/sites/package-lock.json
index 466c0118a..05df2433d 100644
--- a/sites/package-lock.json
+++ b/sites/package-lock.json
@@ -1908,9 +1908,9 @@
 			}
 		},
 		"node_modules/@codemirror/view": {
-			"version": "6.37.1",
-			"resolved": "https://registry.npmjs.org/@codemirror/view/-/view-6.37.1.tgz",
-			"integrity": "sha512-Qy4CAUwngy/VQkEz0XzMKVRcckQuqLYWKqVpDDDghBe5FSXSqfVrJn49nw3ePZHxRUz4nRmb05Lgi+9csWo4eg==",
+			"version": "6.37.2",
+			"resolved": "https://registry.npmjs.org/@codemirror/view/-/view-6.37.2.tgz",
+			"integrity": "sha512-XD3LdgQpxQs5jhOOZ2HRVT+Rj59O4Suc7g2ULvZ+Yi8eCkickrkZ5JFuoDhs2ST1mNI5zSsNYgR3NGa4OUrbnw==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
@@ -3544,9 +3544,9 @@
 			}
 		},
 		"node_modules/@rollup/plugin-commonjs": {
-			"version": "28.0.3",
-			"resolved": "https://registry.npmjs.org/@rollup/plugin-commonjs/-/plugin-commonjs-28.0.3.tgz",
-			"integrity": "sha512-pyltgilam1QPdn+Zd9gaCfOLcnjMEJ9gV+bTw6/r73INdvzf1ah9zLIJBm+kW7R6IUFIQ1YO+VqZtYxZNWFPEQ==",
+			"version": "28.0.5",
+			"resolved": "https://registry.npmjs.org/@rollup/plugin-commonjs/-/plugin-commonjs-28.0.5.tgz",
+			"integrity": "sha512-lytLp2JgAMwqJY6ve3OSROXr2XuEYHjnsQN3hmnxC+w11dI91LuUw4Yc1kk2FqKXeMG8psoFejFgK+znoij0cg==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
@@ -9090,9 +9090,9 @@
 			}
 		},
 		"node_modules/postcss": {
-			"version": "8.5.4",
-			"resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.4.tgz",
-			"integrity": "sha512-QSa9EBe+uwlGTFmHsPKokv3B/oEMQZxfqW0QqNCyhpa6mB1afzulwn8hihglqAb2pOw+BJgNlmXQ8la2VeHB7w==",
+			"version": "8.5.5",
+			"resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.5.tgz",
+			"integrity": "sha512-d/jtm+rdNT8tpXuHY5MMtcbJFBkhXE6593XVR9UoGCH8jSFGci7jGvMGH5RYd5PBJW+00NZQt6gf7CbagJCrhg==",
 			"dev": true,
 			"funding": [
 				{
@@ -12293,7 +12293,7 @@
 				"@codemirror/lang-javascript": "^6.2.4",
 				"@codemirror/state": "^6.5.1",
 				"@codemirror/theme-one-dark": "^6.1.0",
-				"@codemirror/view": "^6.37.1",
+				"@codemirror/view": "^6.37.2",
 				"@csstools/css-calc": "^2.0.0",
 				"@csstools/css-color-parser": "^3.0.0",
 				"@csstools/css-parser-algorithms": "^3.0.0",
@@ -12301,7 +12301,7 @@
 				"@csstools/postcss-bundler": "^2.0.6",
 				"@csstools/postcss-minify": "^2.0.0",
 				"@rollup/plugin-babel": "^6.0.4",
-				"@rollup/plugin-commonjs": "^28.0.3",
+				"@rollup/plugin-commonjs": "^28.0.5",
 				"@rollup/plugin-json": "^6.1.0",
 				"@rollup/plugin-node-resolve": "^16.0.1",
 				"@rollup/plugin-terser": "^0.4.4",
@@ -12310,7 +12310,7 @@
 				"luxon": "^3.6.1",
 				"markdown-it": "^14.1.0",
 				"npm-run-all": "^4.1.5",
-				"postcss": "^8.5.4",
+				"postcss": "^8.5.5",
 				"postcss-cli": "^11.0.1",
 				"postcss-preset-env": "^10.0.0",
 				"rollup": "^4.42.0",
diff --git a/sites/postcss-preset-env/package.json b/sites/postcss-preset-env/package.json
index a557c6ea5..136c14bc8 100644
--- a/sites/postcss-preset-env/package.json
+++ b/sites/postcss-preset-env/package.json
@@ -60,7 +60,7 @@
 		"@codemirror/lang-javascript": "^6.2.4",
 		"@codemirror/state": "^6.5.1",
 		"@codemirror/theme-one-dark": "^6.1.0",
-		"@codemirror/view": "^6.37.1",
+		"@codemirror/view": "^6.37.2",
 		"@csstools/css-calc": "^2.0.0",
 		"@csstools/css-color-parser": "^3.0.0",
 		"@csstools/css-parser-algorithms": "^3.0.0",
@@ -68,7 +68,7 @@
 		"@csstools/postcss-bundler": "^2.0.6",
 		"@csstools/postcss-minify": "^2.0.0",
 		"@rollup/plugin-babel": "^6.0.4",
-		"@rollup/plugin-commonjs": "^28.0.3",
+		"@rollup/plugin-commonjs": "^28.0.5",
 		"@rollup/plugin-json": "^6.1.0",
 		"@rollup/plugin-node-resolve": "^16.0.1",
 		"@rollup/plugin-terser": "^0.4.4",
@@ -77,7 +77,7 @@
 		"luxon": "^3.6.1",
 		"markdown-it": "^14.1.0",
 		"npm-run-all": "^4.1.5",
-		"postcss": "^8.5.4",
+		"postcss": "^8.5.5",
 		"postcss-cli": "^11.0.1",
 		"postcss-preset-env": "^10.0.0",
 		"rollup": "^4.42.0",