diff --git a/package.json b/package.json
index 4ce6c0da..a03fe851 100644
--- a/package.json
+++ b/package.json
@@ -87,7 +87,7 @@
     "js-yaml": "4.1.0",
     "json-schema-to-typescript": "13.1.1",
     "markdown-it-for-inline": "2.0.1",
-    "markdown-it-sub": "1.0.0",
+    "markdown-it-sub": "2.0.0",
     "markdown-it-sup": "1.0.0",
     "markdownlint-rule-helpers": "0.23.0",
     "npm-run-all": "4.1.5",