diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a2555ff..fda3231 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -254,8 +254,8 @@ importers:
         specifier: ^3.3.0
         version: 3.3.0(@glint/template@1.4.0)(ember-source@5.7.0)(webpack@5.91.0)
       '@embroider/test-setup':
-        specifier: ^3.0.3
-        version: 3.0.3
+        specifier: ^4.0.0
+        version: 4.0.0
       '@glimmer/component':
         specifier: ^1.1.2
         version: 1.1.2(@babel/core@7.24.3)
@@ -2092,13 +2092,13 @@ packages:
     transitivePeerDependencies:
       - supports-color
 
-  /@embroider/test-setup@3.0.3:
-    resolution: {integrity: sha512-3K5KSyTdnxAkZQill6+TdC/XTRr6226LNwZMsrhRbBM0FFZXw2D8qmJSHPvZLheQx3A1jnF9t1lyrAzrKlg6Yw==}
+  /@embroider/test-setup@4.0.0:
+    resolution: {integrity: sha512-1S3Ebk0CEh3XDqD93AWSwQZBCk+oGv03gtkaGgdgyXGIR7jrVyDgEnEuslN/hJ0cuU8TqhiXrzHMw7bJwIGhWw==}
     engines: {node: 12.* || 14.* || >= 16}
     peerDependencies:
-      '@embroider/compat': ^3.3.0
-      '@embroider/core': ^3.4.0
-      '@embroider/webpack': ^3.2.1
+      '@embroider/compat': ^3.4.8
+      '@embroider/core': ^3.4.8
+      '@embroider/webpack': ^4.0.0
     peerDependenciesMeta:
       '@embroider/compat':
         optional: true
diff --git a/test-app/package.json b/test-app/package.json
index 99d61b8..d683743 100644
--- a/test-app/package.json
+++ b/test-app/package.json
@@ -32,7 +32,7 @@
     "@ember/optional-features": "^2.1.0",
     "@ember/string": "^3.1.1",
     "@ember/test-helpers": "^3.3.0",
-    "@embroider/test-setup": "^3.0.3",
+    "@embroider/test-setup": "^4.0.0",
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",
     "@glint/core": "^1.4.0",