diff --git a/package-lock.json b/package-lock.json
index 48f0f322..4e7750d3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "dompurify",
-  "version": "2.3.6",
+  "version": "2.3.8",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "dompurify",
-      "version": "2.3.6",
+      "version": "2.3.8",
       "license": "(MPL-2.0 OR Apache-2.0)",
       "devDependencies": {
         "@babel/core": "^7.17.8",
diff --git a/test/test-suite.js b/test/test-suite.js
index 540764c5..fabda26a 100644
--- a/test/test-suite.js
+++ b/test/test-suite.js
@@ -1857,6 +1857,7 @@
           [
             '<a xmlns="http://www.w3.org/1999/xhtml" href="#">abc</a>' +
               '<CustomTag xmlns="http://www.w3.org/1999/xhtml" CustomAttr="foo"></CustomTag>',
+              "<a xmlns=\"http://www.w3.org/1999/xhtml\" href=\"#\">abc</a><CustomTag xmlns=\"http://www.w3.org/1999/xhtml\" CustomAttr=\"foo\" customattr=\"foo\"></CustomTag>"
           ]
         );
       }