diff --git a/packages/ember-cli-fastboot/package.json b/packages/ember-cli-fastboot/package.json
index a6cf4c602..05beaadeb 100644
--- a/packages/ember-cli-fastboot/package.json
+++ b/packages/ember-cli-fastboot/package.json
@@ -67,7 +67,7 @@
     "ember-maybe-import-regenerator-for-testing": "^1.0.0",
     "ember-resolver": "^5.0.1",
     "ember-sinon": "^2.2.0",
-    "ember-source": "~3.8.0",
+    "ember-source": "~3.28.0",
     "eslint-plugin-ember": "^7.0.0",
     "eslint-plugin-node": "^7.0.1",
     "glob": "^7.1.3",