diff --git a/package.json b/package.json
index 1597478..091937d 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   },
   "devDependencies": {
     "@ember/optional-features": "^2.0.0",
-    "@ember/test-helpers": "^1.7.3",
+    "@ember/test-helpers": "^2.7.0",
     "@embroider/test-setup": "^0.37.0",
     "@glimmer/tracking": "^1.0.4",
     "broccoli-asset-rev": "^3.0.0",
diff --git a/yarn.lock b/yarn.lock
index 08f5e32..486d194 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -989,7 +989,7 @@
     mkdirp "^1.0.4"
     silent-error "^1.1.1"
 
-"@ember/test-helpers@^1.7.1", "@ember/test-helpers@^1.7.3":
+"@ember/test-helpers@^1.7.1":
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-1.7.3.tgz#d06b36cb579b172186b11b236b90f0a1aba15ab0"
   integrity sha512-0NwxM9rtl/vD/Zqv8cHefLxojL3l2xuRs6pEppff/Fe39ybXz5H7hm5ZvnpRO/lpSsIeX7tivht9ko6/V+sShw==
@@ -1001,6 +1001,28 @@
     ember-cli-htmlbars-inline-precompile "^2.1.0"
     ember-test-waiters "^1.1.1"
 
+"@ember/test-helpers@^2.7.0":
+  version "2.7.0"
+  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-2.7.0.tgz#d8e08b614cdd5eac647689d655e78e1de725f474"
+  integrity sha512-eWFtw5+sbci1Fw+E+HoyaMxY126LvK7jul6i8tad48zlWoxrOalbhJhz1mKqIo4daHbqIZWuFgQhOib4QfTKCQ==
+  dependencies:
+    "@ember/test-waiters" "^3.0.0"
+    broccoli-debug "^0.6.5"
+    broccoli-funnel "^3.0.8"
+    ember-cli-babel "^7.26.6"
+    ember-cli-htmlbars "^5.7.1"
+    ember-destroyable-polyfill "^2.0.3"
+
+"@ember/test-waiters@^3.0.0":
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/@ember/test-waiters/-/test-waiters-3.0.2.tgz#5b950c580a1891ed1d4ee64f9c6bacf49a15ea6f"
+  integrity sha512-H8Q3Xy9rlqhDKnQpwt2pzAYDouww4TZIGSI1pZJhM7mQIGufQKuB0ijzn/yugA6Z+bNdjYp1HioP8Y4hn2zazQ==
+  dependencies:
+    calculate-cache-key-for-tree "^2.0.0"
+    ember-cli-babel "^7.26.6"
+    ember-cli-version-checker "^5.1.2"
+    semver "^7.3.5"
+
 "@embroider/test-setup@^0.37.0":
   version "0.37.0"
   resolved "https://registry.yarnpkg.com/@embroider/test-setup/-/test-setup-0.37.0.tgz#4c0590c8c3e45813dd53b8b551206acd0a49cefd"
@@ -1975,7 +1997,7 @@ babel-plugin-check-es2015-constants@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-debug-macros@^0.2.0-beta.6:
+babel-plugin-debug-macros@^0.2.0, babel-plugin-debug-macros@^0.2.0-beta.6:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-debug-macros/-/babel-plugin-debug-macros-0.2.0.tgz#0120ac20ce06ccc57bf493b667cf24b85c28da7a"
   integrity sha512-Wpmw4TbhR3Eq2t3W51eBAQSdKlr+uAyF0GI4GtPfMCD12Y4cIdpKC9l0RjNTH/P9isFypSqqewMPm7//fnZlNA==
@@ -2830,10 +2852,10 @@ broccoli-funnel@^2.0.0, broccoli-funnel@^2.0.1, broccoli-funnel@^2.0.2:
     symlink-or-copy "^1.0.0"
     walk-sync "^0.3.1"
 
-broccoli-funnel@^3.0.3, broccoli-funnel@^3.0.6:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/broccoli-funnel/-/broccoli-funnel-3.0.6.tgz#2216a802fc2f6d6875a66531cfbc07e4e4c22d6c"
-  integrity sha512-pJK+pO+2J6BYPiPNNAe16KiCK8SIVUHzjcDbtYMiAwGDhGrNXO91dm1Z/GOtpjqa3xmfm/IuQwMf01tW+FO2Ow==
+broccoli-funnel@^3.0.3, broccoli-funnel@^3.0.6, broccoli-funnel@^3.0.8:
+  version "3.0.8"
+  resolved "https://registry.yarnpkg.com/broccoli-funnel/-/broccoli-funnel-3.0.8.tgz#f5b62e2763c3918026a15a3c833edc889971279b"
+  integrity sha512-ng4eIhPYiXqMw6SyGoxPHR3YAwEd2lr9FgBI1CyTbspl4txZovOsmzFkMkGAlu88xyvYXJqHiM2crfLa65T1BQ==
   dependencies:
     array-equal "^1.0.0"
     broccoli-plugin "^4.0.7"
@@ -4429,6 +4451,26 @@ ember-cli@~3.26.1:
     workerpool "^6.0.3"
     yam "^1.0.0"
 
+ember-compatibility-helpers@^1.2.1:
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/ember-compatibility-helpers/-/ember-compatibility-helpers-1.2.6.tgz#603579ab2fb14be567ef944da3fc2d355f779cd8"
+  integrity sha512-2UBUa5SAuPg8/kRVaiOfTwlXdeVweal1zdNPibwItrhR0IvPrXpaqwJDlEZnWKEoB+h33V0JIfiWleSG6hGkkA==
+  dependencies:
+    babel-plugin-debug-macros "^0.2.0"
+    ember-cli-version-checker "^5.1.1"
+    find-up "^5.0.0"
+    fs-extra "^9.1.0"
+    semver "^5.4.1"
+
+ember-destroyable-polyfill@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/ember-destroyable-polyfill/-/ember-destroyable-polyfill-2.0.3.tgz#1673ed66609a82268ef270a7d917ebd3647f11e1"
+  integrity sha512-TovtNqCumzyAiW0/OisSkkVK93xnVF4NRU6+FN0ubpfwEOpRrmM2RqDwXI6YAChCgSHON1cz0DfQStpA1Gjuuw==
+  dependencies:
+    ember-cli-babel "^7.22.1"
+    ember-cli-version-checker "^5.1.1"
+    ember-compatibility-helpers "^1.2.1"
+
 ember-disable-prototype-extensions@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/ember-disable-prototype-extensions/-/ember-disable-prototype-extensions-1.1.3.tgz#1969135217654b5e278f9fe2d9d4e49b5720329e"
@@ -9279,7 +9321,7 @@ semver-diff@^3.1.1:
   dependencies:
     semver "^6.3.0"
 
-"semver@2 || 3 || 4 || 5", semver@^5.1.0, semver@^5.3.0, semver@^5.5.0, semver@^5.6.0:
+"semver@2 || 3 || 4 || 5", semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0, semver@^5.6.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
@@ -9301,6 +9343,13 @@ semver@^6.0.0, semver@^6.1.0, semver@^6.1.1, semver@^6.1.2, semver@^6.2.0, semve
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
+semver@^7.3.5:
+  version "7.3.7"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.7.tgz#12c5b649afdbf9049707796e22a4028814ce523f"
+  integrity sha512-QlYTucUYOews+WeEujDoEGziz4K6c47V/Bd+LjSSYcA94p+DmINdf7ncaUinThfvZyu13lN9OY1XDxt8C0Tw0g==
+  dependencies:
+    lru-cache "^6.0.0"
+
 send@0.17.1:
   version "0.17.1"
   resolved "https://registry.yarnpkg.com/send/-/send-0.17.1.tgz#c1d8b059f7900f7466dd4938bdc44e11ddb376c8"