diff --git a/src/content/migrate/5.md b/src/content/migrate/5.md
index 0f7c70541e12..d5cd90faed84 100644
--- a/src/content/migrate/5.md
+++ b/src/content/migrate/5.md
@@ -74,6 +74,10 @@ Update the following options to their new version (if used):
 - `Compilation.entries` ↦ `Compilation.entryDependencies`
 - `serve` ↦ `serve` is removed in favor of [`DevServer`](/configuration/dev-server/)
 
+### Notable Changes
+
+`webpack.util.serialization` is now exposed.
+
 #### Test webpack 5 compatibility
 
 Try to set the following options in your webpack 4 configuration and check if build still works correctly.