diff --git a/packages/dtype-markdown-ui/package-lock.json b/packages/dtype-markdown-ui/package-lock.json
index 2c468c4..7745e39 100644
--- a/packages/dtype-markdown-ui/package-lock.json
+++ b/packages/dtype-markdown-ui/package-lock.json
@@ -10332,9 +10332,9 @@
       "dev": true
     },
     "terser": {
-      "version": "4.1.3",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.1.3.tgz",
-      "integrity": "sha512-on13d+cnpn5bMouZu+J8tPYQecsdRJCJuxFJ+FVoPBoLJgk5bCBkp+Uen2hWyi0KIUm6eDarnlAlH+KgIx/PuQ==",
+      "version": "4.8.1",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.1.tgz",
+      "integrity": "sha512-4GnLC0x667eJG0ewJTa6z/yXrbLGv80D9Ru6HIpCQmO+Q4PfEtBFi0ObSckqwL6VyQv/7ENJieXHo2ANmdQwgw==",
       "dev": true,
       "requires": {
         "commander": "^2.20.0",