diff --git a/graphviz-rough/package-lock.json b/graphviz-rough/package-lock.json
index 31c5584c..e17f575f 100644
--- a/graphviz-rough/package-lock.json
+++ b/graphviz-rough/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "graphviz-rough",
-  "version": "0.18.0",
+  "version": "0.18.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -4910,9 +4910,9 @@
       "dev": true
     },
     "terser": {
-      "version": "4.6.12",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.12.tgz",
-      "integrity": "sha512-fnIwuaKjFPANG6MAixC/k1TDtnl1YlPLUlLVIxxGZUn1gfUx2+l3/zGNB72wya+lgsb50QBi2tUV75RiODwnww==",
+      "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",