diff --git a/package-lock.json b/package-lock.json
index d2e6c5e..874587f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "markdown-it-footnote": "^4.0.0",
         "markdown-it-ins": "^4.0.0",
         "markdown-it-mark": "^4.0.0",
-        "markdown-it-sub": "^1.0.0",
+        "markdown-it-sub": "^2.0.0",
         "markdown-it-sup": "^2.0.0",
         "node-sass": "9.0.0",
         "node-sass-json-importer": "^4.3.0",
@@ -2360,9 +2360,9 @@
       "dev": true
     },
     "node_modules/markdown-it-sub": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/markdown-it-sub/-/markdown-it-sub-1.0.0.tgz",
-      "integrity": "sha1-N1/WAm6ufdywEkl/ZBEZXqHjr+g=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/markdown-it-sub/-/markdown-it-sub-2.0.0.tgz",
+      "integrity": "sha512-iCBKgwCkfQBRg2vApy9vx1C1Tu6D8XYo8NvevI3OlwzBRmiMtsJ2sXupBgEA7PPxiDwNni3qIUkhZ6j5wofDUA==",
       "dev": true
     },
     "node_modules/markdown-it-sup": {
@@ -6353,9 +6353,9 @@
       "dev": true
     },
     "markdown-it-sub": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/markdown-it-sub/-/markdown-it-sub-1.0.0.tgz",
-      "integrity": "sha1-N1/WAm6ufdywEkl/ZBEZXqHjr+g=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/markdown-it-sub/-/markdown-it-sub-2.0.0.tgz",
+      "integrity": "sha512-iCBKgwCkfQBRg2vApy9vx1C1Tu6D8XYo8NvevI3OlwzBRmiMtsJ2sXupBgEA7PPxiDwNni3qIUkhZ6j5wofDUA==",
       "dev": true
     },
     "markdown-it-sup": {
diff --git a/package.json b/package.json
index 1a4f960..671f945 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "markdown-it-footnote": "^4.0.0",
     "markdown-it-ins": "^4.0.0",
     "markdown-it-mark": "^4.0.0",
-    "markdown-it-sub": "^1.0.0",
+    "markdown-it-sub": "^2.0.0",
     "markdown-it-sup": "^2.0.0",
     "node-sass": "9.0.0",
     "node-sass-json-importer": "^4.3.0",