diff --git a/package.json b/package.json
index 5a01ad2b..910547e9 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
     "eslint-plugin-qunit": "^8.0.1",
     "loader.js": "^4.7.0",
     "prettier": "^3.3.2",
-    "qunit": "^2.20.0",
+    "qunit": "^2.21.0",
     "qunit-dom": "^3.0.0",
     "release-it": "^17.4.0",
     "sinon": "^17.0.1",
diff --git a/yarn.lock b/yarn.lock
index 5709a1ba..6189fb08 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12726,10 +12726,10 @@ qunit-theme-ember@^1.0.0:
   resolved "https://registry.yarnpkg.com/qunit-theme-ember/-/qunit-theme-ember-1.0.0.tgz#3b750b9e3ab2837cc3b31cc5b73a0b71b964b0db"
   integrity sha512-vdMVVo6ecdCkWttMTKeyq1ZTLGHcA6zdze2zhguNuc3ritlJMhOXY5RDseqazOwqZVfCg3rtlmL3fMUyIzUyFQ==
 
-qunit@^2.20.0:
-  version "2.20.0"
-  resolved "https://registry.yarnpkg.com/qunit/-/qunit-2.20.0.tgz#66a404a0142781316bbda91535869ce5671555b1"
-  integrity sha512-N8Fp1J55waE+QG1KwX2LOyqulZUToRrrPBqDOfYfuAMkEglFL15uwvmH1P4Tq/omQ/mGbBI8PEB3PhIfvUb+jg==
+qunit@^2.21.0:
+  version "2.21.0"
+  resolved "https://registry.yarnpkg.com/qunit/-/qunit-2.21.0.tgz#c3d35adb1c9df8176459665f2daf33170c0f8662"
+  integrity sha512-kJJ+uzx5xDWk0oRrbOZ3zsm+imPULE58ZMIrNl+3POZl4a1k6VXj2E4OiqTmZ9j6hh9egE3kNgnAti9Q+BG6Yw==
   dependencies:
     commander "7.2.0"
     node-watch "0.7.3"