diff --git a/package-lock.json b/package-lock.json
index ef3f1c3..7feec96 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "AGPL",
       "dependencies": {
         "jake": "12.10.1",
-        "uglify-js": "^3.3.27"
+        "uglify-js": "3.19.3"
       },
       "devDependencies": {
         "http-server": "14.1.1"
@@ -110,11 +110,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/commander": {
-      "version": "2.15.1",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.15.1.tgz",
-      "integrity": "sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag=="
-    },
     "node_modules/corser": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/corser/-/corser-2.0.1.tgz",
@@ -676,14 +671,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "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==",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/supports-color": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
@@ -698,13 +685,10 @@
       }
     },
     "node_modules/uglify-js": {
-      "version": "3.3.27",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.3.27.tgz",
-      "integrity": "sha512-O94wxMSb3td/TlofkITYvYIlvIVdldvNXDVRekzK13CQZuL37ua4nrdXX0Ro7MapfUVzglRHs0/+imPRUdOghg==",
-      "dependencies": {
-        "commander": "~2.15.0",
-        "source-map": "~0.6.1"
-      },
+      "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==",
+      "license": "BSD-2-Clause",
       "bin": {
         "uglifyjs": "bin/uglifyjs"
       },
diff --git a/package.json b/package.json
index b21eb91..c1389bf 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
   },
   "dependencies": {
     "jake": "12.10.1",
-    "uglify-js": "^3.3.27"
+    "uglify-js": "3.19.3"
   },
   "devDependencies": {
     "http-server": "14.1.1"