diff --git a/package.json b/package.json
index cc3bed7b..d90da641 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   },
   "devDependencies": {
     "@babel/core": "7.14.6",
-    "@ember/test-helpers": "2.2.6",
+    "@ember/test-helpers": "2.2.8",
     "broccoli-stew": "3.0.0",
     "ember-cli": "3.26.1",
     "ember-cli-dependency-checker": "3.2.0",
diff --git a/yarn.lock b/yarn.lock
index 6c341cf8..802ed27c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1002,19 +1002,19 @@
   resolved "https://registry.yarnpkg.com/@ember/edition-utils/-/edition-utils-1.2.0.tgz#a039f542dc14c8e8299c81cd5abba95e2459cfa6"
   integrity sha512-VmVq/8saCaPdesQmftPqbFtxJWrzxNGSQ+e8x8LLe3Hjm36pJ04Q8LeORGZkAeOhldoUX9seLGmSaHeXkIqoog==
 
-"@ember/test-helpers@2.2.6":
-  version "2.2.6"
-  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-2.2.6.tgz#48a5dd6f871dd531c81edfee8094991fd932dc12"
-  integrity sha512-nsrIeFeA2ZChLYp+qgOjpDKo0a294PVRJ3XZtid2alF4VjNTJPl+tyjQfnPje5kcQtADZlIGOqemNYC3HTo4Lg==
+"@ember/test-helpers@2.2.8":
+  version "2.2.8"
+  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-2.2.8.tgz#3f1c1ab828098e4a6a6209b7c28b124ac614a73f"
+  integrity sha512-1en4cBDoI3+1xtl7k5QtGpPgKmuvF0D7Azs0JSlv3ttV1Fxb3ukLZ/2Giz1IOEMogO4B+k7fGFeYpANVJuNWqA==
   dependencies:
-    "@ember/test-waiters" "^2.4.3"
+    "@ember/test-waiters" "^2.4.4"
     broccoli-debug "^0.6.5"
-    broccoli-funnel "^3.0.3"
-    ember-cli-babel "^7.26.4"
+    broccoli-funnel "^3.0.6"
+    ember-cli-babel "^7.26.6"
     ember-cli-htmlbars "^5.7.1"
     ember-destroyable-polyfill "^2.0.3"
 
-"@ember/test-waiters@^2.4.3":
+"@ember/test-waiters@^2.4.4":
   version "2.4.4"
   resolved "https://registry.yarnpkg.com/@ember/test-waiters/-/test-waiters-2.4.4.tgz#4239d4cd9c60dc081d83e031463c22a628db028e"
   integrity sha512-dhz4WplPWEPZ0Z8iJBI0uvUurv6Sk4aogNiI1XQxDXDNT13aE4WI/uQdsZXZtC+4xOUkz5V6Ob7iaEHDMixjbw==
@@ -3132,7 +3132,7 @@ 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@^3.0.3, broccoli-funnel@^3.0.6:
   version "3.0.7"
   resolved "https://registry.yarnpkg.com/broccoli-funnel/-/broccoli-funnel-3.0.7.tgz#003c1e90e15f2416ccaad7a12667bfeaed843123"
   integrity sha512-DuiMqbR3eHY/c5ctOd0d/aqiGcY3r8Ynoz12vxTsEp5vRkFaIRuMhz5w7UHJbMcoC9nMNnY9hGrvVFODngPRXw==
@@ -4739,7 +4739,7 @@ ember-cli-babel@^6.0.0-beta.4:
     ember-cli-version-checker "^2.1.2"
     semver "^5.5.0"
 
-ember-cli-babel@^7.0.0, ember-cli-babel@^7.13.0, ember-cli-babel@^7.13.2, ember-cli-babel@^7.22.1, ember-cli-babel@^7.23.0, ember-cli-babel@^7.23.1, ember-cli-babel@^7.26.2, ember-cli-babel@^7.26.4:
+ember-cli-babel@^7.0.0, ember-cli-babel@^7.13.0, ember-cli-babel@^7.13.2, ember-cli-babel@^7.22.1, ember-cli-babel@^7.23.0, ember-cli-babel@^7.23.1, ember-cli-babel@^7.26.2, ember-cli-babel@^7.26.4, ember-cli-babel@^7.26.6:
   version "7.26.6"
   resolved "https://registry.yarnpkg.com/ember-cli-babel/-/ember-cli-babel-7.26.6.tgz#322fbbd3baad9dd99e3276ff05bc6faef5e54b39"
   integrity sha512-040svtfj2RC35j/WMwdWJFusZaXmNoytLAMyBDGLMSlRvznudTxZjGlPV6UupmtTBApy58cEF8Fq4a+COWoEmQ==