diff --git a/package-lock.json b/package-lock.json
index 192a932dd9..cec2561a83 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -525,9 +525,9 @@
       }
     },
     "ecmarkup": {
-      "version": "3.21.0",
-      "resolved": "https://registry.npmjs.org/ecmarkup/-/ecmarkup-3.21.0.tgz",
-      "integrity": "sha512-rAC56Gg6O7+1cutLTgJBNSDoq6wOEvguPu4QmHSWkQrZyxAfQlZcKfSf6y85O11z72gLD8ZrwzTvabmJimK3sA==",
+      "version": "3.21.1",
+      "resolved": "https://registry.npmjs.org/ecmarkup/-/ecmarkup-3.21.1.tgz",
+      "integrity": "sha512-xGH9zvFQ0c+7+FlYSmwRJ5ngrtjkeFYUoRsnHhTl7pILvfYQ1B1TdjjYMc4Xi/Lbnxjq6DL/Ahsg32HqcUU+Bw==",
       "requires": {
         "bluebird": "^3.7.2",
         "chalk": "^1.1.3",
diff --git a/package.json b/package.json
index 988c18d908..d2ab7c4474 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   "license": "SEE LICENSE IN https://tc39.es/ecma262/#sec-copyright-and-software-license",
   "homepage": "https://tc39.es/ecma262/",
   "dependencies": {
-    "ecmarkup": "^3.21.0"
+    "ecmarkup": "^3.21.1"
   },
   "devDependencies": {
     "@alrra/travis-scripts": "^2.1.0",