diff --git a/package-lock.json b/package-lock.json
index 3237c85a6..51fb2d147 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -38,7 +38,7 @@
         "@ember/optional-features": "^2.2.0",
         "@ember/render-modifiers": "^2.0.4",
         "@ember/string": "^3.1.1",
-        "@ember/test-helpers": "^3.3.1",
+        "@ember/test-helpers": "^5.2.2",
         "@ember/test-waiters": "^3.1.0",
         "@embroider/compat": "^3.8.5",
         "@embroider/core": "^3.4.16",
@@ -3956,26 +3956,36 @@
       }
     },
     "node_modules/@ember/test-helpers": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/@ember/test-helpers/-/test-helpers-3.3.1.tgz",
-      "integrity": "sha512-h4uFBy4pquBtHsHI+tx9S0wtMmn1L+8dkXiDiyoqG1+3e0Awk6GBujiFM9s4ANq6wC8uIhC3wEFyts10h2OAoQ==",
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/@ember/test-helpers/-/test-helpers-5.2.2.tgz",
+      "integrity": "sha512-Cclqeh0j6RnYvoaElAVC3Nd1fsSUkc3oUTwTsLlNiC3riyPq8lNYxh96VM59/yji2ntrd/cJQ7qhhSZWd6hsEw==",
       "dev": true,
       "dependencies": {
-        "@ember/test-waiters": "^3.0.2",
-        "@embroider/macros": "^1.10.0",
+        "@ember/test-waiters": "^3.1.0 || ^4.0.0",
+        "@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",
-        "dom-element-descriptors": "^0.5.0",
-        "ember-auto-import": "^2.6.0",
-        "ember-cli-babel": "^8.2.0",
-        "ember-cli-htmlbars": "^6.2.0"
-      },
+        "decorator-transforms": "^2.0.0",
+        "dom-element-descriptors": "^0.5.0"
+      }
+    },
+    "node_modules/@ember/test-helpers/node_modules/babel-import-util": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/babel-import-util/-/babel-import-util-3.0.1.tgz",
+      "integrity": "sha512-2copPaWQFUrzooJVIVZA/Oppx/S/KOoZ4Uhr+XWEQDMZ8Rvq/0SNQpbdIyMBJ8IELWt10dewuJw+tX4XjOo7Rg==",
+      "dev": true,
       "engines": {
-        "node": "16.* || >= 18"
-      },
-      "peerDependencies": {
-        "ember-source": "^4.0.0 || ^5.0.0"
+        "node": ">= 12.*"
+      }
+    },
+    "node_modules/@ember/test-helpers/node_modules/decorator-transforms": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/decorator-transforms/-/decorator-transforms-2.3.0.tgz",
+      "integrity": "sha512-jo8c1ss9yFPudHuYYcrJ9jpkDZIoi+lOGvt+Uyp9B+dz32i50icRMx9Bfa8hEt7TnX1FyKWKkjV+cUdT/ep2kA==",
+      "dev": true,
+      "dependencies": {
+        "@babel/plugin-syntax-decorators": "^7.23.3",
+        "babel-import-util": "^3.0.0"
       }
     },
     "node_modules/@ember/test-waiters": {
diff --git a/package.json b/package.json
index 53be4d5bf..fdd6104d3 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "@ember/optional-features": "^2.2.0",
     "@ember/render-modifiers": "^2.0.4",
     "@ember/string": "^3.1.1",
-    "@ember/test-helpers": "^3.3.1",
+    "@ember/test-helpers": "^5.2.2",
     "@ember/test-waiters": "^3.1.0",
     "@embroider/compat": "^3.8.5",
     "@embroider/core": "^3.4.16",