diff --git a/config/webpack/webpack-prod.js b/config/webpack/webpack-prod.js
index aa7fc0bc1..c3c7a84a8 100644
--- a/config/webpack/webpack-prod.js
+++ b/config/webpack/webpack-prod.js
@@ -1,7 +1,7 @@
 const webpack = require('webpack');
 const merge = require('./merge');
 const baseConfig = require('./webpack-base');
-const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
+const TerserPlugin = require('terser-webpack-plugin');
 
 const prodConfig = {
   output: {
@@ -10,8 +10,16 @@ const prodConfig = {
   mode: 'production',
   optimization: {
     minimizer: [
-      new UglifyJSPlugin({
-        sourceMap: true,
+      new TerserPlugin({
+        cache: true,
+        parallel: true,
+        sourceMap: true, // Must be set to true if using source-maps in production
+        terserOptions: {
+          // https://github.com/webpack-contrib/terser-webpack-plugin#terseroptions
+          compress: {
+            drop_console: true,
+          },
+        },
       }),
     ],
   },
diff --git a/package-lock.json b/package-lock.json
index 6e0b2f9c3..b1e650ed0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "cornerstone-tools",
-  "version": "3.0.1",
+  "version": "3.18.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -3953,27 +3953,6 @@
       "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
       "dev": true
     },
-    "cacache": {
-      "version": "10.0.4",
-      "resolved": "https://registry.npmjs.org/cacache/-/cacache-10.0.4.tgz",
-      "integrity": "sha512-Dph0MzuH+rTQzGPNT9fAnrPmMmjKfST6trxJeK7NQuHRaVw24VzPRWTmg9MpcwOVQZO0E1FBICUlFeNaKPIfHA==",
-      "dev": true,
-      "requires": {
-        "bluebird": "^3.5.1",
-        "chownr": "^1.0.1",
-        "glob": "^7.1.2",
-        "graceful-fs": "^4.1.11",
-        "lru-cache": "^4.1.1",
-        "mississippi": "^2.0.0",
-        "mkdirp": "^0.5.1",
-        "move-concurrently": "^1.0.1",
-        "promise-inflight": "^1.0.1",
-        "rimraf": "^2.6.2",
-        "ssri": "^5.2.4",
-        "unique-filename": "^1.1.0",
-        "y18n": "^4.0.0"
-      }
-    },
     "cache-base": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz",
@@ -13139,36 +13118,6 @@
         "minipass": "^2.2.1"
       }
     },
-    "mississippi": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/mississippi/-/mississippi-2.0.0.tgz",
-      "integrity": "sha512-zHo8v+otD1J10j/tC+VNoGK9keCuByhKovAvdn74dmxJl9+mWHnx6EMsDN4lgRoMI/eYo2nchAxniIbUPb5onw==",
-      "dev": true,
-      "requires": {
-        "concat-stream": "^1.5.0",
-        "duplexify": "^3.4.2",
-        "end-of-stream": "^1.1.0",
-        "flush-write-stream": "^1.0.0",
-        "from2": "^2.1.0",
-        "parallel-transform": "^1.1.0",
-        "pump": "^2.0.1",
-        "pumpify": "^1.3.3",
-        "stream-each": "^1.1.0",
-        "through2": "^2.0.0"
-      },
-      "dependencies": {
-        "pump": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/pump/-/pump-2.0.1.tgz",
-          "integrity": "sha512-ruPMNRkN3MHP1cWJc9OWr+T/xDP0jhXYCLfJcBuX54hhfIBnaQmAUMfDcG4DM5UMWByBbJY69QSphm3jtDKIkA==",
-          "dev": true,
-          "requires": {
-            "end-of-stream": "^1.1.0",
-            "once": "^1.3.1"
-          }
-        }
-      }
-    },
     "mixin-deep": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/mixin-deep/-/mixin-deep-1.3.2.tgz",
@@ -20133,24 +20082,6 @@
         "xmlchars": "^1.3.1"
       }
     },
-    "schema-utils": {
-      "version": "0.4.7",
-      "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-0.4.7.tgz",
-      "integrity": "sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==",
-      "dev": true,
-      "requires": {
-        "ajv": "^6.1.0",
-        "ajv-keywords": "^3.1.0"
-      },
-      "dependencies": {
-        "ajv-keywords": {
-          "version": "3.3.0",
-          "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.3.0.tgz",
-          "integrity": "sha512-CMzN9S62ZOO4sA/mJZIO4S++ZM7KFWzH3PPWkveLhy4OZ9i1/VatgwWMD46w/XbGCBy7Ye0gCk+Za6mmyfKK7g==",
-          "dev": true
-        }
-      }
-    },
     "scoped-regex": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/scoped-regex/-/scoped-regex-1.0.0.tgz",
@@ -20588,12 +20519,6 @@
         }
       }
     },
-    "serialize-javascript": {
-      "version": "1.6.1",
-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-1.6.1.tgz",
-      "integrity": "sha512-A5MOagrPFga4YaKQSWHryl7AXvbQkEqpw4NNYMTNYUNV51bA8ABHgYFpqKx+YFFrw59xMV1qGH1R4AgoNIVgCw==",
-      "dev": true
-    },
     "serve-index": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/serve-index/-/serve-index-1.9.1.tgz",
@@ -21141,15 +21066,6 @@
         "tweetnacl": "~0.14.0"
       }
     },
-    "ssri": {
-      "version": "5.3.0",
-      "resolved": "https://registry.npmjs.org/ssri/-/ssri-5.3.0.tgz",
-      "integrity": "sha512-XRSIPqLij52MtgoQavH/x/dU1qVKtWUAAZeOHsR9c2Ddi4XerFy3mc1alf+dLJKl9EUIm/Ht+EowFkTUOA6GAQ==",
-      "dev": true,
-      "requires": {
-        "safe-buffer": "^5.1.1"
-      }
-    },
     "stack-utils": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/stack-utils/-/stack-utils-1.0.2.tgz",
@@ -21549,16 +21465,6 @@
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
           "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
           "dev": true
-        },
-        "source-map-support": {
-          "version": "0.5.13",
-          "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.13.tgz",
-          "integrity": "sha512-SHSKFHadjVA5oR4PPqhtAVdcBWwRYVd6g6cAXnIbRiIwc2EhPrTuKUBdSLvlEKyIP3GCf89fltvcZiP9MMFA1w==",
-          "dev": true,
-          "requires": {
-            "buffer-from": "^1.0.0",
-            "source-map": "^0.6.0"
-          }
         }
       }
     },
@@ -22108,46 +22014,6 @@
         }
       }
     },
-    "uglifyjs-webpack-plugin": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.2.5.tgz",
-      "integrity": "sha512-hIQJ1yxAPhEA2yW/i7Fr+SXZVMp+VEI3d42RTHBgQd2yhp/1UdBcR3QEWPV5ahBxlqQDMEMTuTEvDHSFINfwSw==",
-      "dev": true,
-      "requires": {
-        "cacache": "^10.0.4",
-        "find-cache-dir": "^1.0.0",
-        "schema-utils": "^0.4.5",
-        "serialize-javascript": "^1.4.0",
-        "source-map": "^0.6.1",
-        "uglify-es": "^3.3.4",
-        "webpack-sources": "^1.1.0",
-        "worker-farm": "^1.5.2"
-      },
-      "dependencies": {
-        "commander": {
-          "version": "2.13.0",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.13.0.tgz",
-          "integrity": "sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==",
-          "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
-        },
-        "uglify-es": {
-          "version": "3.3.9",
-          "resolved": "https://registry.npmjs.org/uglify-es/-/uglify-es-3.3.9.tgz",
-          "integrity": "sha512-r+MU0rfv4L/0eeW3xZrd16t4NZfK8Ld4SWVglYBb7ez5uXFWHuVRs6xCTrf1yirs9a4j4Y27nn7SRfO6v67XsQ==",
-          "dev": true,
-          "requires": {
-            "commander": "~2.13.0",
-            "source-map": "~0.6.1"
-          }
-        }
-      }
-    },
     "undefsafe": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/undefsafe/-/undefsafe-2.0.2.tgz",
@@ -24757,24 +24623,6 @@
         "uuid": "^3.3.2"
       }
     },
-    "webpack-sources": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.3.0.tgz",
-      "integrity": "sha512-OiVgSrbGu7NEnEvQJJgdSFPl2qWKkWq5lHMhgiToIiN9w34EBnjYzSYs+VbL5KoYiLNtFFa7BZIKxRED3I32pA==",
-      "dev": true,
-      "requires": {
-        "source-list-map": "^2.0.0",
-        "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
-        }
-      }
-    },
     "websocket-driver": {
       "version": "0.7.3",
       "resolved": "https://registry.npmjs.org/websocket-driver/-/websocket-driver-0.7.3.tgz",
@@ -24905,15 +24753,6 @@
       "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
       "dev": true
     },
-    "worker-farm": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.6.0.tgz",
-      "integrity": "sha512-6w+3tHbM87WnSWnENBUvA2pxJPLhQUg5LKwUQHq3r+XPhIM+Gh2R5ycbwPCyuGbNg+lPgdcnQUhuC02kJCvffQ==",
-      "dev": true,
-      "requires": {
-        "errno": "~0.1.7"
-      }
-    },
     "wrap-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
diff --git a/package.json b/package.json
index 4db7f0a3a..29bb06682 100755
--- a/package.json
+++ b/package.json
@@ -83,7 +83,7 @@
     "prettier": "1.18.x",
     "semantic-release": "^15.13.24",
     "shx": "^0.3.2",
-    "uglifyjs-webpack-plugin": "1.2.5",
+    "terser-webpack-plugin": "^1.4.1",
     "webpack": "^4.35.2",
     "webpack-cli": "^3.3.5",
     "webpack-dev-server": "^3.7.2"