diff --git a/package-lock.json b/package-lock.json
index 19ad314..75fc132 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "drag-tree-table",
-  "version": "2.0.1",
+  "version": "2.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -7938,9 +7938,9 @@
       }
     },
     "terser": {
-      "version": "4.4.0",
-      "resolved": "http://npm.mfwdev.com/terser/-/terser-4.4.0.tgz",
-      "integrity": "sha1-IsRrSBfPTJVlQ0v+atRzNq8lmsM=",
+      "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",
@@ -7950,14 +7950,14 @@
       "dependencies": {
         "commander": {
           "version": "2.20.3",
-          "resolved": "http://npm.mfwdev.com/commander/-/commander-2.20.3.tgz",
-          "integrity": "sha1-/UhehMA+tIgcIHIrpIA16FMa6zM=",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
           "dev": true
         },
         "source-map": {
           "version": "0.6.1",
-          "resolved": "http://npm.mfwdev.com/source-map/-/source-map-0.6.1.tgz",
-          "integrity": "sha1-dHIq8y6WFOnCh6jQu95IteLxomM=",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
           "dev": true
         }
       }