diff --git a/package.json b/package.json
index 1597478..254578e 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": "^2.8.1",
     "@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..651d97d 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 +1001,58 @@
     ember-cli-htmlbars-inline-precompile "^2.1.0"
     ember-test-waiters "^1.1.1"
 
+"@ember/test-helpers@^2.8.1":
+  version "2.8.1"
+  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-2.8.1.tgz#20f2e30d48172c2ff713e1db7fbec5352f918d4e"
+  integrity sha512-jbsYwWyAdhL/pdPu7Gb3SG1gvIXY70FWMtC/Us0Kmvk82Y+5YUQ1SOC0io75qmOGYQmH7eQrd/bquEVd+4XtdQ==
+  dependencies:
+    "@ember/test-waiters" "^3.0.0"
+    "@embroider/macros" "^1.6.0"
+    "@embroider/util" "^1.6.0"
+    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/macros@1.7.1", "@embroider/macros@^1.6.0":
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/@embroider/macros/-/macros-1.7.1.tgz#125b73f30f983866528b7b6ccd6d2ca565628c70"
+  integrity sha512-JmWSCaRVSubV2FIFlOORZzLa8YfSndGqI8B013LtzOkYDkiLTFmE6L9kQmu/c8gdSUoqYiK+pVQn/AIh8ChtHQ==
+  dependencies:
+    "@embroider/shared-internals" "1.7.1"
+    assert-never "^1.2.1"
+    babel-import-util "^1.1.0"
+    ember-cli-babel "^7.26.6"
+    find-up "^5.0.0"
+    lodash "^4.17.21"
+    resolve "^1.20.0"
+    semver "^7.3.2"
+
+"@embroider/shared-internals@1.7.1":
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/@embroider/shared-internals/-/shared-internals-1.7.1.tgz#68afe26aa84e7431b858fcc1f1e0e8a5aaa7c90b"
+  integrity sha512-qT7i3EnOogwvi6xRl7wjJmx27rLlUZG6B6HJXAKXvZOyGFVs0GnQKIJX+7zX2PZAcqlpqhmdWm9MPdrof0dj5g==
+  dependencies:
+    babel-import-util "^1.1.0"
+    ember-rfc176-data "^0.3.17"
+    fs-extra "^9.1.0"
+    js-string-escape "^1.0.1"
+    lodash "^4.17.21"
+    resolve-package-path "^4.0.1"
+    semver "^7.3.5"
+    typescript-memoize "^1.0.1"
+
 "@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"
@@ -1009,6 +1061,15 @@
     lodash "^4.17.20"
     resolve "^1.17.0"
 
+"@embroider/util@^1.6.0":
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/@embroider/util/-/util-1.7.1.tgz#827d59c80b7f8eff30515aba6c3a8918062f4783"
+  integrity sha512-O/v1O1TSWqCGDA2/iROsGby75JAwOp89CogfVZ5UG2MGY2rxpcC0QeWDinMHVfGEv9iBrNxyG9GIRzMsM4o1hA==
+  dependencies:
+    "@embroider/macros" "1.7.1"
+    broccoli-funnel "^3.0.5"
+    ember-cli-babel "^7.23.1"
+
 "@eslint/eslintrc@^0.4.2":
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-0.4.2.tgz#f63d0ef06f5c0c57d76c4ab5f63d3835c51b0179"
@@ -1717,6 +1778,11 @@ array-unique@^0.3.2:
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
   integrity sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=
 
+assert-never@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/assert-never/-/assert-never-1.2.1.tgz#11f0e363bf146205fb08193b5c7b90f4d1cf44fe"
+  integrity sha512-TaTivMB6pYI1kXwrFlEhLeGfOqoDNdTxjCdwRfFFkEA30Eu+k48W34nlok2EYWJfFFzqaEmichdNM7th6M5HNw==
+
 assign-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
@@ -1961,6 +2027,11 @@ babel-helpers@^6.24.1:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
+babel-import-util@^1.1.0:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/babel-import-util/-/babel-import-util-1.2.2.tgz#1027560e143a4a68b1758e71d4fadc661614e495"
+  integrity sha512-8HgkHWt5WawRFukO30TuaL9EiDUOdvyKtDwLma4uBNeUSDbOO0/hiPfavrOWxSS6J6TKXfukWHZ3wiqZhJ8ONQ==
+
 babel-messages@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-6.23.0.tgz#f3cdf4703858035b2a2951c6ec5edf6c62f2630e"
@@ -1975,7 +2046,7 @@ 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 +2901,10 @@ 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@^3.0.5, 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 +4500,26 @@ 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"
@@ -6863,6 +6954,11 @@ jquery@^3.5.0, jquery@^3.5.1:
   resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.6.0.tgz#c72a09f15c1bdce142f49dbf1170bdf8adac2470"
   integrity sha512-JVzAR/AjBvVt2BmYhxRCSYysDsPcssdmTFnzyLEts9qNwmjmu4JTAMYubEfwVOSwpQ1I1sKKFcxhZCI2buerfw==
 
+js-string-escape@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/js-string-escape/-/js-string-escape-1.0.1.tgz#e2625badbc0d67c7533e9edc1068c587ae4137ef"
+  integrity sha512-Smw4xcfIQ5LVjAOuJCvN/zIodzA/BBSsluuoSykP+lUvScIi4U6RJLfwHet5cxFnCswUjISV8oAXaqaJDY3chg==
+
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -9097,6 +9193,13 @@ resolve-package-path@^3.1.0:
     path-root "^0.1.1"
     resolve "^1.17.0"
 
+resolve-package-path@^4.0.1:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/resolve-package-path/-/resolve-package-path-4.0.3.tgz#31dab6897236ea6613c72b83658d88898a9040aa"
+  integrity sha512-SRpNAPW4kewOaNUt8VPqhJ0UMxawMwzJD8V7m1cJfdSTK9ieZwS6K7Dabsm4bmLFM96Z5Y/UznrpG5kt1im8yA==
+  dependencies:
+    path-root "^0.1.1"
+
 resolve-path@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/resolve-path/-/resolve-path-1.4.0.tgz#c4bda9f5efb2fce65247873ab36bb4d834fe16f7"
@@ -9279,7 +9382,7 @@ 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 +9404,13 @@ 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"
@@ -10261,6 +10371,11 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
+typescript-memoize@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/typescript-memoize/-/typescript-memoize-1.1.0.tgz#4a8f512d06fc995167c703a3592219901db8bc79"
+  integrity sha512-LQPKVXK8QrBBkL/zclE6YgSWn0I8ew5m0Lf+XL00IwMhlotqRLlzHV+BRrljVQIc+NohUAuQP7mg4HQwrx5Xbg==
+
 uc.micro@^1.0.1, uc.micro@^1.0.5:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/uc.micro/-/uc.micro-1.0.6.tgz#9c411a802a409a91fc6cf74081baba34b24499ac"