diff --git a/package-lock.json b/package-lock.json
index 25d2037..b93f34b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -142,12 +142,6 @@
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             "dev": true
         },
-        "commander": {
-            "version": "2.20.3",
-            "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
-            "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
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         "concat-map": {
             "version": "0.0.1",
             "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -1074,12 +1068,6 @@
             "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=",
             "dev": true
         },
-        "source-map": {
-            "version": "0.6.1",
-            "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-            "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-            "dev": true
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         "spdx-correct": {
             "version": "3.1.0",
             "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
@@ -1187,14 +1175,10 @@
             "dev": true
         },
         "uglify-js": {
-            "version": "3.6.4",
-            "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.4.tgz",
-            "integrity": "sha512-9Yc2i881pF4BPGhjteCXQNaXx1DCwm3dtOyBaG2hitHjLWOczw/ki8vD1bqyT3u6K0Ms/FpCShkmfg+FtlOfYA==",
-            "dev": true,
-            "requires": {
-                "commander": "~2.20.3",
-                "source-map": "~0.6.1"
-            }
+            "version": "3.13.8",
+            "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.13.8.tgz",
+            "integrity": "sha512-PvFLMFIQHfIjFFlvAch69U2IvIxK9TNzNWt1SxZGp9JZ/v70yvqIQuiJeVPPtUMOzoNt+aNRDk4wgxb34wvEqA==",
+            "dev": true
         },
         "underscore.string": {
             "version": "3.3.5",