diff --git a/package.json b/package.json
index a91633b..c2d5a50 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "ember-cli-clipboard": "^0.16.0",
     "ember-cli-content-security-policy": "^2.0.0",
     "ember-cli-dependency-checker": "^3.2.0",
-    "ember-cli-deprecation-workflow": "^1.0.1",
+    "ember-cli-deprecation-workflow": "^2.0.0",
     "ember-cli-flash": "^2.0.0",
     "ember-cli-htmlbars": "^5.2.0",
     "ember-cli-inject-live-reload": "^2.0.2",
diff --git a/yarn.lock b/yarn.lock
index a81b719..e5c731a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4276,7 +4276,7 @@ broccoli-plugin@^3.1.0:
     rimraf "^2.3.4"
     symlink-or-copy "^1.1.8"
 
-broccoli-plugin@^4.0.0, broccoli-plugin@^4.0.2, broccoli-plugin@^4.0.3, broccoli-plugin@^4.0.7:
+broccoli-plugin@^4.0.0, broccoli-plugin@^4.0.2, broccoli-plugin@^4.0.3, broccoli-plugin@^4.0.5, broccoli-plugin@^4.0.7:
   version "4.0.7"
   resolved "https://registry.yarnpkg.com/broccoli-plugin/-/broccoli-plugin-4.0.7.tgz#dd176a85efe915ed557d913744b181abe05047db"
   integrity sha512-a4zUsWtA1uns1K7p9rExYVYG99rdKeGRymW0qOCNkvDPHQxVi3yVyJHhQbM3EZwdt2E0mnhr5e0c/bPpJ7p3Wg==
@@ -6208,15 +6208,15 @@ ember-cli-dependency-checker@^3.2.0:
     resolve "^1.22.0"
     semver "^5.7.1"
 
-ember-cli-deprecation-workflow@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/ember-cli-deprecation-workflow/-/ember-cli-deprecation-workflow-1.0.1.tgz#3305a6879af7f074216a54963d92491c411ce7e0"
-  integrity sha512-tns8l4FLz8zmhmNRH7ywihs4XNTTuQysl+POYTpiyjb4zPNKv0cUJBCT/MklYFWBCo/5DcVzabhLODJZcScUfg==
+ember-cli-deprecation-workflow@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/ember-cli-deprecation-workflow/-/ember-cli-deprecation-workflow-2.1.0.tgz#f0d38ece7ac0ab7b3f83790a3a092e3472f58cff"
+  integrity sha512-Ay9P9iKMJdY4Gq5XPowh3HqqeAzLfwBRj1oB1ZKkDW1fryZQWBN4pZuRnjnB+3VWZjBnZif5e7Pacc7YNW9hWg==
   dependencies:
-    broccoli-funnel "^2.0.1"
-    broccoli-merge-trees "^3.0.1"
-    broccoli-plugin "^1.3.1"
-    ember-debug-handlers-polyfill "^1.1.1"
+    broccoli-funnel "^3.0.3"
+    broccoli-merge-trees "^4.2.0"
+    broccoli-plugin "^4.0.5"
+    ember-cli-htmlbars "^5.3.2"
 
 ember-cli-flash@^2.0.0:
   version "2.2.2"
@@ -6263,7 +6263,7 @@ ember-cli-htmlbars@^4.2.0:
     strip-bom "^4.0.0"
     walk-sync "^2.0.2"
 
-ember-cli-htmlbars@^5.2.0, ember-cli-htmlbars@^5.3.1, ember-cli-htmlbars@^5.7.1:
+ember-cli-htmlbars@^5.2.0, ember-cli-htmlbars@^5.3.1, ember-cli-htmlbars@^5.3.2, ember-cli-htmlbars@^5.7.1:
   version "5.7.2"
   resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-5.7.2.tgz#e0cd2fb3c20d85fe4c3e228e6f0590ee1c645ba8"
   integrity sha512-Uj6R+3TtBV5RZoJY14oZn/sNPnc+UgmC8nb5rI4P3fR/gYoyTFIZSXiIM7zl++IpMoIrocxOrgt+mhonKphgGg==
@@ -6714,11 +6714,6 @@ ember-data@~3.12.0:
     ember-cli-typescript "^2.0.2"
     ember-inflector "^3.0.1"
 
-ember-debug-handlers-polyfill@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/ember-debug-handlers-polyfill/-/ember-debug-handlers-polyfill-1.1.1.tgz#e9ae0a720271a834221179202367421b580002ef"
-  integrity sha512-lO7FBAqJjzbL+IjnWhVfQITypPOJmXdZngZR/Vdn513W4g/Q6Sjicao/mDzeDCb48Y70C4Facwk0LjdIpSZkRg==
-
 ember-decorators@^6.1.0, ember-decorators@^6.1.1:
   version "6.1.1"
   resolved "https://registry.yarnpkg.com/ember-decorators/-/ember-decorators-6.1.1.tgz#6d770f8999cf5a413a1ee459afd520838c0fc470"