diff --git a/package.json b/package.json
index 4037a85..079bc68 100644
--- a/package.json
+++ b/package.json
@@ -112,7 +112,8 @@
   },
   "peerDependencies": {
     "moment": "^2",
-    "moment-timezone": "^0.5.34"
+    "moment-timezone": "^0.5.34",
+    "@ember/test-helpers": "^2"
   },
   "peerDependenciesMeta": {
     "moment": {
@@ -120,6 +121,9 @@
     },
     "moment-timezone": {
       "optional": true
+    },
+    "@ember/test-helpers": {
+      "optional": true
     }
   },
   "engines": {