diff --git a/package.json b/package.json
index b2c1ac4..bb7eef0 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "license": "MIT",
   "devDependencies": {
     "broccoli-asset-rev": "^2.4.5",
-    "ember-ajax": "^3.0.0",
+    "ember-ajax": "^4.0.0",
     "ember-bootstrap-datetimepicker": "1.1.0",
     "ember-cli": "^2.11.0",
     "ember-cli-app-version": "^3.1.3",