diff --git a/package-lock.json b/package-lock.json
index b4d618b6da02ec..d5224ff24ce5ba 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -119,7 +119,6 @@
 				"npm-run-all": "4.1.5",
 				"patch-package": "8.0.0",
 				"postcss": "8.4.38",
-				"postcss-import": "16.1.0",
 				"postcss-loader": "6.2.1",
 				"postcss-local-keyframes": "^0.0.2",
 				"prettier": "npm:wp-prettier@3.0.3",
@@ -40557,6 +40556,7 @@
 			"version": "2.3.0",
 			"resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
 			"integrity": "sha512-udgsAY+fTnvv7kI7aaxbqwWNb0AHiB0qBO89PZKPkoTmGOgdbrHDKD+0B2X4uTfJ/FT1R09r9gTsjUjNJotuog==",
+			"dev": true,
 			"engines": {
 				"node": ">=0.10.0"
 			}
@@ -40836,27 +40836,6 @@
 				"postcss": "^8.2.15"
 			}
 		},
-		"node_modules/postcss-import": {
-			"version": "16.1.0",
-			"resolved": "https://registry.npmjs.org/postcss-import/-/postcss-import-16.1.0.tgz",
-			"integrity": "sha512-7hsAZ4xGXl4MW+OKEWCnF6T5jqBw80/EE9aXg1r2yyn1RsVEU8EtKXbijEODa+rg7iih4bKf7vlvTGYR4CnPNg==",
-			"dependencies": {
-				"postcss-value-parser": "^4.0.0",
-				"read-cache": "^1.0.0",
-				"resolve": "^1.1.7"
-			},
-			"engines": {
-				"node": ">=18.0.0"
-			},
-			"peerDependencies": {
-				"postcss": "^8.0.0"
-			}
-		},
-		"node_modules/postcss-import/node_modules/postcss-value-parser": {
-			"version": "4.2.0",
-			"resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz",
-			"integrity": "sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ=="
-		},
 		"node_modules/postcss-loader": {
 			"version": "6.2.1",
 			"resolved": "https://registry.npmjs.org/postcss-loader/-/postcss-loader-6.2.1.tgz",
@@ -43337,14 +43316,6 @@
 				"node": "^14.17.0 || ^16.13.0 || >=18.0.0"
 			}
 		},
-		"node_modules/read-cache": {
-			"version": "1.0.0",
-			"resolved": "https://registry.npmjs.org/read-cache/-/read-cache-1.0.0.tgz",
-			"integrity": "sha512-Owdv/Ft7IjOgm/i0xvNDZ1LrRANRfew4b2prF3OWMQLxLfu3bS8FVhCsrSCMK4lR56Y9ya+AThoTpDCTxCmpRA==",
-			"dependencies": {
-				"pify": "^2.3.0"
-			}
-		},
 		"node_modules/read-cmd-shim": {
 			"version": "4.0.0",
 			"resolved": "https://registry.npmjs.org/read-cmd-shim/-/read-cmd-shim-4.0.0.tgz",
@@ -55585,7 +55556,6 @@
 				"npm-package-json-lint": "^6.4.0",
 				"npm-packlist": "^3.0.0",
 				"postcss": "^8.4.5",
-				"postcss-import": "^16.1.0",
 				"postcss-loader": "^6.2.1",
 				"prettier": "npm:wp-prettier@3.0.3",
 				"puppeteer-core": "^23.1.0",
diff --git a/package.json b/package.json
index 87cf9a5cacd943..f987643e737563 100644
--- a/package.json
+++ b/package.json
@@ -128,7 +128,6 @@
 		"npm-run-all": "4.1.5",
 		"patch-package": "8.0.0",
 		"postcss": "8.4.38",
-		"postcss-import": "16.1.0",
 		"postcss-loader": "6.2.1",
 		"postcss-local-keyframes": "^0.0.2",
 		"prettier": "npm:wp-prettier@3.0.3",
diff --git a/packages/scripts/CHANGELOG.md b/packages/scripts/CHANGELOG.md
index c09cfd1ac9aaaa..aed5c976a53803 100644
--- a/packages/scripts/CHANGELOG.md
+++ b/packages/scripts/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Bug Fix
 
 -   Make `start` script more resilient for developer errors ([#66752](https://github.com/WordPress/gutenberg/pull/66752)).
+-   Revert changes from [#61121](https://github.com/WordPress/gutenberg/pull/61121) that inlined CSS files imported from other CSS files before optimization in the `build` command.
 
 ## 30.4.0 (2024-10-30)
 
diff --git a/packages/scripts/config/webpack.config.js b/packages/scripts/config/webpack.config.js
index 91ef19fc27ed6b..f9ef7dc5b7acca 100644
--- a/packages/scripts/config/webpack.config.js
+++ b/packages/scripts/config/webpack.config.js
@@ -75,7 +75,6 @@ const cssLoaders = [
 					plugins: isProduction
 						? [
 								...postcssPlugins,
-								require( 'postcss-import' ),
 								require( 'cssnano' )( {
 									// Provide a fallback configuration if there's not
 									// one explicitly available in the project.
diff --git a/packages/scripts/package.json b/packages/scripts/package.json
index 3a50d921145e19..3e7b01c720f69f 100644
--- a/packages/scripts/package.json
+++ b/packages/scripts/package.json
@@ -74,7 +74,6 @@
 		"npm-package-json-lint": "^6.4.0",
 		"npm-packlist": "^3.0.0",
 		"postcss": "^8.4.5",
-		"postcss-import": "^16.1.0",
 		"postcss-loader": "^6.2.1",
 		"prettier": "npm:wp-prettier@3.0.3",
 		"puppeteer-core": "^23.1.0",