diff --git a/package.json b/package.json
index ecb1e7571..9f1db34b4 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,11 @@
     "i18next-http-backend": "1.0.15",
     "markdown-it": "11.0.0",
     "markdown-it-emoji": "1.4.0",
+    "markdown-it-ins": "^3.0.0",
+    "markdown-it-mark": "^3.0.0",
     "markdown-it-regex": "0.2.0",
+    "markdown-it-sub": "^1.0.0",
+    "markdown-it-sup": "^1.0.0",
     "markdown-it-task-lists": "2.1.1",
     "moment": "2.27.0",
     "node-sass": "4.14.1",
diff --git a/yarn.lock b/yarn.lock
index 47898bda0..fa84fd697 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7275,11 +7275,31 @@ markdown-it-emoji@1.4.0:
   resolved "https://registry.yarnpkg.com/markdown-it-emoji/-/markdown-it-emoji-1.4.0.tgz#9bee0e9a990a963ba96df6980c4fddb05dfb4dcc"
   integrity sha1-m+4OmpkKljupbfaYDE/dsF37Tcw=
 
+markdown-it-ins@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/markdown-it-ins/-/markdown-it-ins-3.0.0.tgz#b1b56824c78dc66e52b0fc97531b317cd78d79d2"
+  integrity sha512-+vyAdBuMGwmT2yMlAFJSx2VR/0QZ1onQ/Mkkmr4l9tDFOh5sVoAgRbkgbuSsk+sxJ9vaMH/IQ323ydfvQrPO/Q==
+
+markdown-it-mark@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/markdown-it-mark/-/markdown-it-mark-3.0.0.tgz#27c3e39ef3cc310b2dde5375082c9fa912983cda"
+  integrity sha512-HqMWeKfMMOu4zBO0emmxsoMWmbf2cPKZY1wP6FsTbKmicFfp5y4L3KXAsNeO1rM6NTJVOrNlLKMPjWzriBGspw==
+
 markdown-it-regex@0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/markdown-it-regex/-/markdown-it-regex-0.2.0.tgz#e09ad2d75209720d591d3949e1142c75c0fbecf6"
   integrity sha512-111UnMGJSt37gy+DlgcpQNwEfS2jvscOFSztzGhuXUHk7K1J5eAEj6C3jifmKb0cWtTuxdpHgIt4PyGQ+DtDjw==
 
+markdown-it-sub@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/markdown-it-sub/-/markdown-it-sub-1.0.0.tgz#375fd6026eae7ddcb012497f6411195ea1e3afe8"
+  integrity sha1-N1/WAm6ufdywEkl/ZBEZXqHjr+g=
+
+markdown-it-sup@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/markdown-it-sup/-/markdown-it-sup-1.0.0.tgz#cb9c9ff91a5255ac08f3fd3d63286e15df0a1fc3"
+  integrity sha1-y5yf+RpSVawI8/09YyhuFd8KH8M=
+
 markdown-it-task-lists@2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/markdown-it-task-lists/-/markdown-it-task-lists-2.1.1.tgz#f68f4d2ac2bad5a2c373ba93081a1a6848417088"