diff --git a/CHANGELOG.md b/CHANGELOG.md
index d9fc451fe5..5ef4932f00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ _Note: Gaps between patch versions are faulty, broken or test releases._
 * Fixed the memoization of `getParent`: it was saved in the context of the main component, as a
 result of which the components in the slots had an incorrect `$parent` `build/snakeskin`
 * Fixed loss of refs in slots inside async render `core/component/render`
+* Fixed unexpected async chunk generation during build
 
 ## v4.0.0-beta.51 (2024-01-19)
 
diff --git a/build/webpack/optimization.js b/build/webpack/optimization.js
index 544f93661f..d8b928311d 100644
--- a/build/webpack/optimization.js
+++ b/build/webpack/optimization.js
@@ -17,6 +17,7 @@ const
 	CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
 
 const {
+	isLayerDep,
 	isExternalDep,
 
 	RUNTIME
@@ -56,7 +57,9 @@ module.exports = function optimization({buildId, plugins}) {
 			cacheGroups: {
 				async: {
 					chunks: 'async',
-					reuseExistingChunk: true
+					minChunks: 1,
+					reuseExistingChunk: true,
+					test: isLayerDep
 				},
 
 				defaultVendors: {