diff --git a/package.json b/package.json
index de6934a..1656281 100644
--- a/package.json
+++ b/package.json
@@ -123,8 +123,6 @@
     "release-it": "^14.8.0",
     "release-it-lerna-changelog": "^3.1.0",
     "tailwindcss": "^2.2.7",
-    "testdouble": "^3.16.1",
-    "testdouble-qunit": "^3.0.0",
     "typescript": "^4.4.3"
   },
   "resolutions": {
diff --git a/tests/assertions/testdouble.js b/tests/assertions/testdouble.js
deleted file mode 100644
index 38f84c2..0000000
--- a/tests/assertions/testdouble.js
+++ /dev/null
@@ -1,6 +0,0 @@
-import * as QUnit from 'qunit';
-
-import td from 'testdouble';
-import installVerifyAssertion from 'testdouble-qunit';
-
-installVerifyAssertion(QUnit, td);
diff --git a/tests/test-helper.js b/tests/test-helper.js
index 1b969a3..ebf61ae 100644
--- a/tests/test-helper.js
+++ b/tests/test-helper.js
@@ -1,5 +1,4 @@
 import './assertions/dom';
-import './assertions/testdouble';
 import './assertions/wait-for';
 
 import { setApplication } from '@ember/test-helpers';
diff --git a/yarn.lock b/yarn.lock
index 9b78c42..ad8cbd1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -13289,21 +13289,6 @@ terser@^5.3.0:
     source-map "~0.7.2"
     source-map-support "~0.5.19"
 
-testdouble-qunit@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/testdouble-qunit/-/testdouble-qunit-3.0.0.tgz#142e7fe32cbd3d3f442cd8539f236dea63db2fa8"
-  integrity sha512-zd2IKz5eELq4bZPDG0HYE6JTALGibUvrOy9OD05JiiE+4/UEFBDDG7P0tWjJfP5rk2Vm+gK9Do02a/xtvWe+jA==
-
-testdouble@^3.16.1:
-  version "3.16.2"
-  resolved "https://registry.yarnpkg.com/testdouble/-/testdouble-3.16.2.tgz#7ce45d46423fe6cd07926e2371b96ad9e09c1a5b"
-  integrity sha512-oPVoKBXrkP/SaTsF2W7Tpe77whd/jRKbeAVZok1lQKkZ2lFjjFrulpxuHOVF84tMr8PrN8GUUr24Nto/9vs1Lw==
-  dependencies:
-    lodash "^4.17.15"
-    quibble "^0.6.4"
-    stringify-object-es5 "^2.5.0"
-    theredoc "^1.0.0"
-
 testem@^3.2.0:
   version "3.4.2"
   resolved "https://registry.yarnpkg.com/testem/-/testem-3.4.2.tgz#0ee3ca4025a9085d47230b0c797c815882d4029e"