diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index d92a83d..a2a25f8
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "jsdom": "^16.2.2",
     "lockfile": "^1.0.4",
     "lodash": "^4.17.15",
-    "marked": "^1.1.0",
+    "marked": "^4.0.10",
     "mime-types": "^2.1.27",
     "mkdirp": "^1.0.4",
     "mobiledoc-dom-renderer": "^0.7.0",
diff --git a/yarn.lock b/yarn.lock
index 49c61a4..b6159db 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9345,10 +9345,10 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
-marked@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/marked/-/marked-1.1.0.tgz#62504ad4d11550c942935ccc5e39d64e5a4c4e50"
-  integrity sha512-EkE7RW6KcXfMHy2PA7Jg0YJE1l8UPEZE8k45tylzmZM30/r1M1MUXWQfJlrSbsTeh7m/XTwHbWUENvAJZpp1YA==
+marked@^4.0.10:
+  version "4.0.10"
+  resolved "https://registry.yarnpkg.com/marked/-/marked-4.0.10.tgz#423e295385cc0c3a70fa495e0df68b007b879423"
+  integrity sha512-+QvuFj0nGgO970fySghXGmuw+Fd0gD2x3+MqCWLIPf5oxdv1Ka6b2q+z9RP01P/IaKPMEramy+7cNy/Lw8c3hw==
 
 md5.js@^1.3.4:
   version "1.3.5"