diff --git a/package.json b/package.json
index 6fb46153..3df2be04 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "@babel/plugin-transform-class-static-block": "^7.24.7",
     "@ember/optional-features": "^2.1.0",
     "@ember/string": "^3.0.1",
-    "@ember/test-helpers": "^3.3.1",
+    "@ember/test-helpers": "^4.0.2",
     "@embroider/test-setup": "^4.0.0",
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",
diff --git a/yarn.lock b/yarn.lock
index 6af62786..4c7f4b93 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2199,30 +2199,17 @@
   dependencies:
     ember-cli-babel "^7.26.6"
 
-"@ember/test-helpers@^3.3.1":
-  version "3.3.1"
-  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-3.3.1.tgz#b19287dbb7ba169a2033574bb5021c0490b199b9"
-  integrity sha512-h4uFBy4pquBtHsHI+tx9S0wtMmn1L+8dkXiDiyoqG1+3e0Awk6GBujiFM9s4ANq6wC8uIhC3wEFyts10h2OAoQ==
+"@ember/test-helpers@^4.0.2":
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-4.0.2.tgz#728fab314280381b04f70a1fd1014f5db6c24aca"
+  integrity sha512-9vV5nDx1ZzmTmexzTudRk9M04JY6mqB3NxJB116vkjGQWIRTgiAVUgBkFIudRXvX1QiOGTo6IPxQRXZRS+v28w==
   dependencies:
-    "@ember/test-waiters" "^3.0.2"
-    "@embroider/macros" "^1.10.0"
+    "@ember/test-waiters" "^3.1.0"
+    "@embroider/addon-shim" "^1.8.7"
+    "@embroider/macros" "^1.16.5"
     "@simple-dom/interface" "^1.4.0"
-    broccoli-debug "^0.6.5"
-    broccoli-funnel "^3.0.8"
+    decorator-transforms "^2.0.0"
     dom-element-descriptors "^0.5.0"
-    ember-auto-import "^2.6.0"
-    ember-cli-babel "^8.2.0"
-    ember-cli-htmlbars "^6.2.0"
-
-"@ember/test-waiters@^3.0.2":
-  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"
 
 "@ember/test-waiters@^3.1.0":
   version "3.1.0"
@@ -2257,7 +2244,7 @@
     resolve "^1.20.0"
     semver "^7.3.2"
 
-"@embroider/macros@^1.0.0", "@embroider/macros@^1.10.0", "@embroider/macros@^1.13.1", "@embroider/macros@^1.16.1":
+"@embroider/macros@^1.0.0", "@embroider/macros@^1.13.1", "@embroider/macros@^1.16.1", "@embroider/macros@^1.16.5":
   version "1.16.5"
   resolved "https://registry.yarnpkg.com/@embroider/macros/-/macros-1.16.5.tgz#871addab2103b554c6b6a3a337c00e3f0a0462ac"
   integrity sha512-Oz8bUZvZzOV1Gk3qSgIzZJJzs6acclSTcEFyB+KdKbKqjTC3uebn53aU2gAlLU7/YdTRZrg2gNbQuwAp+tGkGg==
@@ -6961,7 +6948,7 @@ ember-auto-import@^1.10.1, ember-auto-import@^1.11.3:
     walk-sync "^0.3.3"
     webpack "^4.43.0"
 
-"ember-auto-import@^1.11.3 || ^2.0.0", ember-auto-import@^2.6.0, ember-auto-import@^2.6.3:
+"ember-auto-import@^1.11.3 || ^2.0.0", ember-auto-import@^2.6.3:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/ember-auto-import/-/ember-auto-import-2.6.3.tgz#f18d1b93dd10b08ba5496518436f9d56dd4e000a"
   integrity sha512-uLhrRDJYWCRvQ4JQ1e64XlSrqAKSd6PXaJ9ZsZI6Tlms9T4DtQFxNXasqji2ZRJBVrxEoLCRYX3RTldsQ0vNGQ==
@@ -7202,7 +7189,7 @@ ember-cli-htmlbars@^5.3.1, ember-cli-htmlbars@^5.3.2, ember-cli-htmlbars@^5.7.1:
     strip-bom "^4.0.0"
     walk-sync "^2.2.0"
 
-ember-cli-htmlbars@^6.2.0, ember-cli-htmlbars@^6.3.0:
+ember-cli-htmlbars@^6.3.0:
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-6.3.0.tgz#ac85f2bbd09788992ab7f9ca832cd044fb8e5798"
   integrity sha512-N9Y80oZfcfWLsqickMfRd9YByVcTGyhYRnYQ2XVPVrp6jyUyOeRWmEAPh7ERSXpp8Ws4hr/JB9QVQrn/yZa+Ag==