diff --git a/ember-cli-build.js b/ember-cli-build.js
index b2981d8f0..8a5d38edf 100644
--- a/ember-cli-build.js
+++ b/ember-cli-build.js
@@ -4,7 +4,7 @@
 const EmberApp = require('ember-cli/lib/broccoli/ember-app');
 const concat = require('broccoli-concat');
 const mergeTrees = require('broccoli-merge-trees');
-const Uglify = require('broccoli-uglify-sourcemap');
+const Terser = require('broccoli-terser-sourcemap');
 const Funnel = require('broccoli-funnel');
 const environment = EmberApp.env();
 const isProduction = environment === 'production';
@@ -50,7 +50,7 @@ const codemirrorAssets = function () {
             });
 
             if (isProduction) {
-                jsTree = new Uglify(jsTree);
+                jsTree = new Terser(jsTree);
             }
 
             let mergedTree = mergeTrees([tree, jsTree]);
@@ -88,7 +88,7 @@ const simplemdeAssets = function () {
             });
 
             if (isProduction) {
-                jsTree = new Uglify(jsTree);
+                jsTree = new Terser(jsTree);
             }
 
             let mergedTree = mergeTrees([tree, jsTree]);
diff --git a/package.json b/package.json
index 9b9d7c8ac..3b49deb14 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "broccoli-concat": "4.2.4",
     "broccoli-funnel": "3.0.3",
     "broccoli-merge-trees": "4.2.0",
-    "broccoli-uglify-sourcemap": "4.0.0",
+    "broccoli-terser-sourcemap": "4.1.0",
     "chai": "4.2.0",
     "chai-dom": "1.8.2",
     "codemirror": "5.48.2",
@@ -69,8 +69,8 @@
     "ember-cli-postcss": "6.0.1",
     "ember-cli-shims": "1.2.0",
     "ember-cli-string-helpers": "5.0.0",
+    "ember-cli-terser": "4.0.0",
     "ember-cli-test-loader": "3.0.0",
-    "ember-cli-uglify": "3.0.0",
     "ember-composable-helpers": "4.3.0",
     "ember-concurrency": "1.3.0",
     "ember-concurrency-decorators": "2.0.1",
diff --git a/yarn.lock b/yarn.lock
index 39939e9df..96fe97070 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3769,10 +3769,10 @@ broccoli-templater@^2.0.1:
     rimraf "^2.6.2"
     walk-sync "^0.3.3"
 
-broccoli-uglify-sourcemap@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/broccoli-uglify-sourcemap/-/broccoli-uglify-sourcemap-4.0.0.tgz#c5c5fbd9563cf0fe4c68c337bb61e98fe0697a3b"
-  integrity sha512-46yB4gw1Q3ALtBROY5QfKXNXxYK5uPSvER1OGjjh2t3piaipqBfuRXTzQZvmZ+Odr6/McY+J8XmxON4+lE1ukg==
+broccoli-terser-sourcemap@4.1.0, broccoli-terser-sourcemap@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/broccoli-terser-sourcemap/-/broccoli-terser-sourcemap-4.1.0.tgz#5f37441b64a3b6bfb0c67e9af232259c9576f115"
+  integrity sha512-zkNnjsAbP+M5rG2aMM1EE4BmXPUSxFKmtLUkUs2D1DLTOJQoF1xlOjGWjjKYCFy5tw8t4+tgGJ+HVa2ucJZ8sw==
   dependencies:
     async-promise-queue "^1.0.5"
     broccoli-plugin "^4.0.3"
@@ -3785,23 +3785,6 @@ broccoli-uglify-sourcemap@4.0.0:
     walk-sync "^2.2.0"
     workerpool "^6.0.0"
 
-broccoli-uglify-sourcemap@^3.1.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/broccoli-uglify-sourcemap/-/broccoli-uglify-sourcemap-3.2.0.tgz#d96f1d41f6c18e9a5d49af1a5ab9489cdcac1c6c"
-  integrity sha512-kkkn8v7kXdWwnZNekq+3ILuTAGkZoaoEMUYCKoER5/uokuoyTjtdYLHaE7UxHkuPEuLfjvJYv21sCCePZ74/2g==
-  dependencies:
-    async-promise-queue "^1.0.5"
-    broccoli-plugin "^1.2.1"
-    debug "^4.1.0"
-    lodash.defaultsdeep "^4.6.1"
-    matcher-collection "^2.0.0"
-    mkdirp "^0.5.0"
-    source-map-url "^0.4.0"
-    symlink-or-copy "^1.0.1"
-    terser "^4.3.9"
-    walk-sync "^1.1.3"
-    workerpool "^5.0.1"
-
 broccoli@^3.4.2:
   version "3.4.2"
   resolved "https://registry.yarnpkg.com/broccoli/-/broccoli-3.4.2.tgz#a0c2605bea285c50cac304f482b86670630f4701"
@@ -5807,6 +5790,13 @@ ember-cli-string-utils@^1.0.0, ember-cli-string-utils@^1.1.0:
   resolved "https://registry.yarnpkg.com/ember-cli-string-utils/-/ember-cli-string-utils-1.1.0.tgz#39b677fc2805f55173735376fcef278eaa4452a1"
   integrity sha1-ObZ3/CgF9VFzc1N2/O8njqpEUqE=
 
+ember-cli-terser@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/ember-cli-terser/-/ember-cli-terser-4.0.0.tgz#01d2f1a3090833d1c895fea34ec0b4106a293f3a"
+  integrity sha512-N9PBVreF7041l7ggxdhrivK1suh1EgURuz3PmLIi1jdDhf/WVVkCAWfriFP3HeFUwAjX4qxHrgFR2Pb5va9Vxw==
+  dependencies:
+    broccoli-terser-sourcemap "^4.1.0"
+
 ember-cli-test-info@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/ember-cli-test-info/-/ember-cli-test-info-1.0.0.tgz#ed4e960f249e97523cf891e4aed2072ce84577b4"
@@ -5883,14 +5873,6 @@ ember-cli-typescript@^3.1.2, ember-cli-typescript@^3.1.3, ember-cli-typescript@^
     stagehand "^1.0.0"
     walk-sync "^2.0.0"
 
-ember-cli-uglify@3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ember-cli-uglify/-/ember-cli-uglify-3.0.0.tgz#8819665b2cc5fe70e3ba9fe7a94645209bc42fd6"
-  integrity sha512-n3QxdBfAgBdb2Cnso82Kt/nxm3ppIjnYWM8uhOEhF1aYxNXfM7AJrc+yiqTCDUR61Db8aCpHfAMvChz3kyme7g==
-  dependencies:
-    broccoli-uglify-sourcemap "^3.1.0"
-    lodash.defaultsdeep "^4.6.0"
-
 ember-cli-version-checker@^2.0.0, ember-cli-version-checker@^2.1.0, ember-cli-version-checker@^2.1.1, ember-cli-version-checker@^2.1.2:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/ember-cli-version-checker/-/ember-cli-version-checker-2.2.0.tgz#47771b731fe0962705e27c8199a9e3825709f3b3"
@@ -13248,7 +13230,7 @@ terser-webpack-plugin@^1.1.0:
     webpack-sources "^1.4.0"
     worker-farm "^1.7.0"
 
-terser@^4.1.2, terser@^4.3.9:
+terser@^4.1.2:
   version "4.8.0"
   resolved "https://registry.yarnpkg.com/terser/-/terser-4.8.0.tgz#63056343d7c70bb29f3af665865a46fe03a0df17"
   integrity sha512-EAPipTNeWsb/3wLPeup1tVPaXfIaU68xMnVdPafIL1TV05OhASArYyIfFvnvJCNrR2NIOvDVNNTFRa+Re2MWyw==
@@ -14150,11 +14132,6 @@ workerpool@^3.1.1:
     object-assign "4.1.1"
     rsvp "^4.8.4"
 
-workerpool@^5.0.1:
-  version "5.0.4"
-  resolved "https://registry.yarnpkg.com/workerpool/-/workerpool-5.0.4.tgz#4f67cb70ff7550a27ab94de25b0b843cd92059a2"
-  integrity sha512-Sywova24Ow2NQ24JPB68bI89EdqMDjUXo4OpofK/QMD7C2ZVMloYBgQ5J3PChcBJHj2vspsmGx1/3nBKXtUkXQ==
-
 workerpool@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/workerpool/-/workerpool-6.0.0.tgz#85aad67fa1a2c8ef9386a1b43539900f61d03d58"