diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ea15beded..9508d16b8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -68,6 +68,8 @@ jobs:
           - ember-lts-4.4
           - ember-lts-4.8
           - ember-lts-4.12
+          - ember-lts-5.4
+          - ember-lts-5.8
           - ember-release
           - ember-beta
           - ember-canary
@@ -91,13 +93,22 @@ jobs:
           - scenario: ember-lts-3.28
             browser: Firefox
             bootstrap: 5
-          - scenario: ember-lts-4.4
+          - scenario: ember-lts-4.12
             browser: Firefox
             bootstrap: 3
-          - scenario: ember-lts-4.4
+          - scenario: ember-lts-4.12
             browser: Firefox
             bootstrap: 4
-          - scenario: ember-lts-4.4
+          - scenario: ember-lts-4.12
+            browser: Firefox
+            bootstrap: 5
+          - scenario: ember-lts-5.8
+            browser: Firefox
+            bootstrap: 3
+          - scenario: ember-lts-5.8
+            browser: Firefox
+            bootstrap: 4
+          - scenario: ember-lts-5.8
             browser: Firefox
             bootstrap: 5
           - scenario: node-tests
diff --git a/config/ember-try.js b/config/ember-try.js
index 8cdb95f4d..b04d49782 100644
--- a/config/ember-try.js
+++ b/config/ember-try.js
@@ -47,6 +47,24 @@ module.exports = async function () {
           // FAIL_ON_DEPRECATION: true,
         },
       },
+      {
+        name: 'ember-lts-5.4',
+        npm: {
+          devDependencies: {
+            'ember-source': '~5.4.0',
+            bootstrap: bootstrapVersion,
+          },
+        },
+      },
+      {
+        name: 'ember-lts-5.8',
+        npm: {
+          devDependencies: {
+            'ember-source': '~5.8.0',
+            bootstrap: bootstrapVersion,
+          },
+        },
+      },
       {
         name: 'ember-release',
         npm: {