diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 55318e6..8f4c61c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -61,6 +61,8 @@ 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
diff --git a/tests/dummy/config/ember-try.js b/tests/dummy/config/ember-try.js
index cda141a..ef124a1 100644
--- a/tests/dummy/config/ember-try.js
+++ b/tests/dummy/config/ember-try.js
@@ -39,6 +39,22 @@ module.exports = async function () {
           },
         },
       },
+      {
+        name: 'ember-lts-5.4',
+        npm: {
+          devDependencies: {
+            'ember-source': '~5.4.0',
+          },
+        },
+      },
+      {
+        name: 'ember-lts-5.8',
+        npm: {
+          devDependencies: {
+            'ember-source': '~5.8.0',
+          },
+        },
+      },
       {
         name: 'ember-release',
         npm: {