diff --git a/addons/notes/package.json b/addons/notes/package.json
index 4f600593df0a..c6067aeb86b5 100644
--- a/addons/notes/package.json
+++ b/addons/notes/package.json
@@ -29,7 +29,7 @@
     "@storybook/core-events": "5.1.0-alpha.9",
     "@storybook/theming": "5.1.0-alpha.9",
     "core-js": "^2.6.5",
-    "markdown-to-jsx": "^6.9.1",
+    "markdown-to-jsx": "^6.9.3",
     "prop-types": "^15.7.2",
     "util-deprecate": "^1.0.2"
   },
diff --git a/lib/ui/package.json b/lib/ui/package.json
index 264b93793e93..d351b8c20455 100644
--- a/lib/ui/package.json
+++ b/lib/ui/package.json
@@ -36,7 +36,7 @@
     "lodash.isequal": "^4.5.0",
     "lodash.mergewith": "^4.6.1",
     "lodash.pick": "^4.4.0",
-    "markdown-to-jsx": "^6.9.1",
+    "markdown-to-jsx": "^6.9.3",
     "memoizerific": "^1.11.3",
     "polished": "^3.0.0",
     "prop-types": "^15.7.2",
diff --git a/yarn.lock b/yarn.lock
index 818b8b7dd988..ae28024d242c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -15705,10 +15705,10 @@ markdown-table@^1.1.0:
   resolved "https://registry.yarnpkg.com/markdown-table/-/markdown-table-1.1.2.tgz#c78db948fa879903a41bce522e3b96f801c63786"
   integrity sha512-NcWuJFHDA8V3wkDgR/j4+gZx+YQwstPgfQDV8ndUeWWzta3dnDTBxpVzqS9lkmJAuV5YX35lmyojl6HO5JXAgw==
 
-markdown-to-jsx@^6.9.1:
-  version "6.9.1"
-  resolved "https://registry.yarnpkg.com/markdown-to-jsx/-/markdown-to-jsx-6.9.1.tgz#a5771d468727e282f54a15ff447bcd79fc2e619f"
-  integrity sha512-SAUZWD//gjhP3Sfy2Q7EqhNOm7YYKTfQKuiuyr8FO9fa0EPkrXSDDE3u28A5SQx6j4BJ9Zs9Va77GBMtIcgAWw==
+markdown-to-jsx@^6.9.3:
+  version "6.9.3"
+  resolved "https://registry.yarnpkg.com/markdown-to-jsx/-/markdown-to-jsx-6.9.3.tgz#31719e3c54517ba9805db81d53701b89f5d2ed7e"
+  integrity sha512-iXteiv317VZd1vk/PBH5MWMD4r0XWekoWCHRVVadBcnCtxavhtfV1UaEaQgq9KyckTv31L60ASh5ZVVrOh37Qg==
   dependencies:
     prop-types "^15.6.2"
     unquote "^1.1.0"