diff --git a/package-lock.json b/package-lock.json
index a40ba1c..6894d36 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "rimraf": "2.6.2",
         "serve": "^14.2.4",
         "typescript": "3.6.3",
-        "uglify-js": "3.4.9",
+        "uglify-js": "3.19.3",
         "webpack": "^4.28.3",
         "webpack-cli": "^3.1.2"
       }
@@ -1479,12 +1479,6 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
-    "node_modules/commander": {
-      "version": "2.17.1",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
-      "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
-      "dev": true
-    },
     "node_modules/commondir": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
@@ -5218,14 +5212,11 @@
       }
     },
     "node_modules/uglify-js": {
-      "version": "3.4.9",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.9.tgz",
-      "integrity": "sha512-8CJsbKOtEbnJsTyv6LE6m6ZKniqMiFWmm9sRbopbkGs3gMPPfd3Fh8iIA4Ykv5MgaTbqHr4BaoGLJLZNhsrW1Q==",
+      "version": "3.19.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.19.3.tgz",
+      "integrity": "sha512-v3Xu+yuwBXisp6QYTcH4UbH+xYJXqnq2m/LtQVWKWzYc1iehYnLixoQDN9FH6/j9/oybfd6W9Ghwkl8+UMKTKQ==",
       "dev": true,
-      "dependencies": {
-        "commander": "~2.17.1",
-        "source-map": "~0.6.1"
-      },
+      "license": "BSD-2-Clause",
       "bin": {
         "uglifyjs": "bin/uglifyjs"
       },
@@ -5233,15 +5224,6 @@
         "node": ">=0.8.0"
       }
     },
-    "node_modules/uglify-js/node_modules/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,
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/unfetch": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/unfetch/-/unfetch-4.1.0.tgz",
@@ -7340,12 +7322,6 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
-    "commander": {
-      "version": "2.17.1",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
-      "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
-      "dev": true
-    },
     "commondir": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
@@ -10311,22 +10287,10 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.4.9",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.9.tgz",
-      "integrity": "sha512-8CJsbKOtEbnJsTyv6LE6m6ZKniqMiFWmm9sRbopbkGs3gMPPfd3Fh8iIA4Ykv5MgaTbqHr4BaoGLJLZNhsrW1Q==",
-      "dev": true,
-      "requires": {
-        "commander": "~2.17.1",
-        "source-map": "~0.6.1"
-      },
-      "dependencies": {
-        "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
-        }
-      }
+      "version": "3.19.3",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.19.3.tgz",
+      "integrity": "sha512-v3Xu+yuwBXisp6QYTcH4UbH+xYJXqnq2m/LtQVWKWzYc1iehYnLixoQDN9FH6/j9/oybfd6W9Ghwkl8+UMKTKQ==",
+      "dev": true
     },
     "unfetch": {
       "version": "4.1.0",
diff --git a/package.json b/package.json
index b53c0ea..e472562 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "rimraf": "2.6.2",
     "serve": "^14.2.4",
     "typescript": "3.6.3",
-    "uglify-js": "3.4.9",
+    "uglify-js": "3.19.3",
     "webpack-cli": "^3.1.2",
     "webpack": "^4.28.3"
   },