diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 14c424e2..bcb5236e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -119,7 +119,6 @@ jobs:
           - ember-lts-5.12
           - ember-lts-6.4
           - ember-lts-6.8
-          - glimmer-component-v1
           - ember-release
           - ember-beta
           - ember-canary
diff --git a/docs/app/templates/public-pages/docs/migrate-8-0-to-9-0.gts b/docs/app/templates/public-pages/docs/migrate-8-0-to-9-0.gts
index 96915a38..166ec368 100644
--- a/docs/app/templates/public-pages/docs/migrate-8-0-to-9-0.gts
+++ b/docs/app/templates/public-pages/docs/migrate-8-0-to-9-0.gts
@@ -10,7 +10,13 @@ import { LinkTo } from '@ember/routing';
 
   <ul>
     <li>
-      <p>The minimum required Ember version is now 4.12.</p>
+      The minimum required versions are:
+      <ul>
+        <li>Ember 4.12 and above</li>
+        <li><code>ember-truth-helpers</code> 5.x and above</li>
+        <li><code>@ember/test-helpers</code> 5.x and above</li>
+        <li><code>@glimmer/component</code> 2.x and above</li>
+      </ul>
     </li>
     <li>
       <p>
diff --git a/ember-basic-dropdown/package.json b/ember-basic-dropdown/package.json
index 6fb7425b..4b98ef01 100644
--- a/ember-basic-dropdown/package.json
+++ b/ember-basic-dropdown/package.json
@@ -67,7 +67,7 @@
     "ember-element-helper": "^0.8.8",
     "ember-modifier": "^4.2.2",
     "ember-style-modifier": "^4.5.1",
-    "ember-truth-helpers": "^4.0.3 || ^5.0.0"
+    "ember-truth-helpers": "^5.0.0"
   },
   "devDependencies": {
     "@babel/core": "^7.28.5",
@@ -107,8 +107,8 @@
     "webpack": "^5.103.0"
   },
   "peerDependencies": {
-    "@ember/test-helpers": "^2.9.4 || ^3.2.1 || ^4.0.2 || ^5.0.0",
-    "@glimmer/component": "^1.1.2 || ^2.0.0"
+    "@ember/test-helpers": "^5.0.0",
+    "@glimmer/component": "^2.0.0"
   },
   "publishConfig": {
     "registry": "https://registry.npmjs.org"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 175809eb..383abf0e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -247,7 +247,7 @@ importers:
         specifier: ^4.5.1
         version: 4.5.1(@babel/core@7.28.5)(@ember/string@4.0.1)
       ember-truth-helpers:
-        specifier: ^4.0.3 || ^5.0.0
+        specifier: ^5.0.0
         version: 5.0.0
     devDependencies:
       '@babel/core':
diff --git a/test-app/config/ember-try.js b/test-app/config/ember-try.js
index 2ae92e64..f331567b 100644
--- a/test-app/config/ember-try.js
+++ b/test-app/config/ember-try.js
@@ -56,14 +56,6 @@ module.exports = async function () {
           },
         },
       },
-      {
-        name: 'glimmer-component-v1',
-        npm: {
-          devDependencies: {
-            '@glimmer/component': '^1.1.2',
-          },
-        },
-      },
       {
         name: 'ember-release',
         npm: {