diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4805237a4..218f50921 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,9 +28,9 @@ jobs:
       matrix:
         ember-version:
           - default
-            #- release
-            #- beta
-            #- canary
+          - release
+          - beta
+          - canary
           - lts-3.4
           - lts-3.8
           - lts-3.12
@@ -38,6 +38,11 @@ jobs:
           - lts-3.20
           - lts-3.24
           - lts-3.28
+          - lts-4.4
+          - lts-4.8
+          - lts-4.12
+          - lts-5.4
+          - lts-5.8
 
     steps:
       - uses: actions/checkout@v2
diff --git a/packages/@glimmer/component/config/ember-try.js b/packages/@glimmer/component/config/ember-try.js
index 73733016f..7dc63e258 100644
--- a/packages/@glimmer/component/config/ember-try.js
+++ b/packages/@glimmer/component/config/ember-try.js
@@ -3,6 +3,20 @@
 const getChannelURL = require('ember-source-channel-url');
 
 module.exports = function() {
+  function lts(version, extra = {}) {
+    return {
+      name: `ember-lts-${version}`,
+      npm: {
+        ...extra,
+        devDependencies: {
+          'ember-source': `~${version}.0`,
+          ...(extra && extra.devDependencies || {}),
+        }
+
+      },
+    }
+  }
+
   return Promise.all([
     getChannelURL('release'),
     getChannelURL('beta'),
@@ -67,6 +81,11 @@ module.exports = function() {
             },
           },
         },
+        lts('4.4'),
+        lts('4.8'),
+        lts('4.12'),
+        lts('5.4'),
+        lts('5.8'),
         {
           name: 'ember-release',
           npm: {