diff --git a/test/fixtures/wpt/README.md b/test/fixtures/wpt/README.md
index 232f78fb00c8ea..626a684d6959c8 100644
--- a/test/fixtures/wpt/README.md
+++ b/test/fixtures/wpt/README.md
@@ -29,7 +29,7 @@ Last update:
 - resources: https://github.com/web-platform-tests/wpt/tree/1e140d63ec/resources
 - streams: https://github.com/web-platform-tests/wpt/tree/bc9dcbbf1a/streams
 - url: https://github.com/web-platform-tests/wpt/tree/9504a83e01/url
-- urlpattern: https://github.com/web-platform-tests/wpt/tree/3ffda23e5a/urlpattern
+- urlpattern: https://github.com/web-platform-tests/wpt/tree/84b75f0880/urlpattern
 - user-timing: https://github.com/web-platform-tests/wpt/tree/5ae85bf826/user-timing
 - wasm/jsapi: https://github.com/web-platform-tests/wpt/tree/cde25e7e3c/wasm/jsapi
 - wasm/webapi: https://github.com/web-platform-tests/wpt/tree/fd1b23eeaa/wasm/webapi
diff --git a/test/fixtures/wpt/urlpattern/urlpattern-constructor.html b/test/fixtures/wpt/urlpattern/urlpattern-constructor.html
new file mode 100644
index 00000000000000..2d83b7dc0325b4
--- /dev/null
+++ b/test/fixtures/wpt/urlpattern/urlpattern-constructor.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+test(() => {
+  assert_throws_js(TypeError, () => { new URLPattern(new URL('https://example.org/%(')); } );
+  assert_throws_js(TypeError, () => { new URLPattern(new URL('https://example.org/%((')); } );
+  assert_throws_js(TypeError, () => { new URLPattern('(\\'); } );
+}, `Test unclosed token`);
+
+test(() => {
+  new URLPattern(undefined, undefined);
+}, `Test constructor with undefined`);
+</script>
diff --git a/test/fixtures/wpt/versions.json b/test/fixtures/wpt/versions.json
index 79031f7caa4b78..247dd0103932c7 100644
--- a/test/fixtures/wpt/versions.json
+++ b/test/fixtures/wpt/versions.json
@@ -76,7 +76,7 @@
     "path": "url"
   },
   "urlpattern": {
-    "commit": "3ffda23e5af7c59590b17c2710a22efd22dd4973",
+    "commit": "84b75f08801c8cfe407c25614c49132075b8afab",
     "path": "urlpattern"
   },
   "user-timing": {
