diff --git a/package-lock.json b/package-lock.json
index 5c092f0..ac45fa7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -519,9 +519,9 @@
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-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.17.4.tgz",
-      "integrity": "sha512-T9q82TJI9e/C1TAxYvfb16xO120tMVFZrGA3f9/P4424DNu6ypK103y0GPFVa17yotwSyZW5iYXgjYHkGrJW/g==",
+      "version": "3.18.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.18.0.tgz",
+      "integrity": "sha512-SyVVbcNBCk0dzr9XL/R/ySrmYf0s372K6/hFklzgcp2lBFyXtw4I7BOdDjlLhE1aVqaI/SHWXWmYdlZxuyF38A==",
       "dev": true,
       "bin": {
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@@ -949,9 +949,9 @@
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     "uglify-js": {
-      "version": "3.17.4",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.17.4.tgz",
-      "integrity": "sha512-T9q82TJI9e/C1TAxYvfb16xO120tMVFZrGA3f9/P4424DNu6ypK103y0GPFVa17yotwSyZW5iYXgjYHkGrJW/g==",
+      "version": "3.18.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.18.0.tgz",
+      "integrity": "sha512-SyVVbcNBCk0dzr9XL/R/ySrmYf0s372K6/hFklzgcp2lBFyXtw4I7BOdDjlLhE1aVqaI/SHWXWmYdlZxuyF38A==",
       "dev": true
     },
     "vscode-oniguruma": {