diff --git a/addon/package.json b/addon/package.json
index f1c23b20..5dc11dae 100644
--- a/addon/package.json
+++ b/addon/package.json
@@ -28,7 +28,7 @@
   "devDependencies": {},
   "peerDependencies": {
     "@ember/string": "^3.0.1",
-    "ember-source": "^4.8.3"
+    "ember-source": "^4.8.3 || >= 5.0.0"
   },
   "peerDependenciesMeta": {
     "ember-source": {