diff --git a/after/syntax/css/selectors-4.vim b/after/syntax/css/selectors-4.vim
index 534fa35..11834d7 100644
--- a/after/syntax/css/selectors-4.vim
+++ b/after/syntax/css/selectors-4.vim
@@ -7,4 +7,4 @@ syn match cssPseudoClassId contained "\<\(in\|out-of\)-range\>"
 syn match cssPseudoClassId contained "\<user-invalid\>"
 syn match cssPseudoClassId contained "\<target-within\>"
 syn match cssPseudoClassId contained "\<focus-\(within\|visible\)\>"
-syn region cssPseudoClassLang matchgroup=cssPseudoClassId start=":\(matches\|dir\|local-link\|current\|nth\(-last\)\=-col\|has\|drop\)(" end=")" oneline
+syn region cssPseudoClassLang matchgroup=cssPseudoClassId start=":\(is\|dir\|local-link\|current\|nth\(-last\)\=-col\|has\|where\)(" end=")" oneline
diff --git a/test/test.css b/test/test.css
index 358a52c..be652f5 100644
--- a/test/test.css
+++ b/test/test.css
@@ -758,7 +758,7 @@ mask {
 .selectors-4:in-range,
 .selectors-4:out-of-range,
 .selectors-4:user-invalid,
-.selectors-4:matches(:hover, :focus),
+.selectors-4:is(:hover, :focus),
 .selectors-4:dir(ltr),
 .selectors-4:local-link(0),
 .selectors-4:current(p, li, dt, dd),
@@ -770,7 +770,7 @@ mask {
 .selectors-4:playing,
 .selectors-4:paused,
 .selectors-4:has(> img),
-.selectors-4:drop(active) {
+.selectors-4:where(:not(:hover)) {
   display: auto;
 }