diff --git a/.changeset/nasty-tomatoes-confess.md b/.changeset/nasty-tomatoes-confess.md
new file mode 100644
index 0000000000..f3e6590657
--- /dev/null
+++ b/.changeset/nasty-tomatoes-confess.md
@@ -0,0 +1,5 @@
+---
+"stylelint": patch
+---
+
+Fixed: `selector-pseudo-element-no-unknown` false positives for `::highlight` pseudo-element
diff --git a/lib/reference/selectors.js b/lib/reference/selectors.js
index bd3bdc742f..69ff5892ff 100644
--- a/lib/reference/selectors.js
+++ b/lib/reference/selectors.js
@@ -169,6 +169,7 @@ const pseudoElements = uniteSets(
 		'cue',
 		'file-selector-button',
 		'grammar-error',
+		'highlight',
 		'marker',
 		'placeholder',
 		'selection',