diff --git a/ember/client/package.json b/ember/client/package.json
index 1573a16..f3d3df2 100644
--- a/ember/client/package.json
+++ b/ember/client/package.json
@@ -18,9 +18,9 @@
   "devDependencies": {
     "@ember/jquery": "^2.0.0",
     "@ember/optional-features": "^2.0.0",
-    "@ember/test-helpers": "^2.4.2",
+    "@ember/test-helpers": "^4.0.5",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-ajax": "^5.0.0",
+    "ember-ajax": "^5.1.2",
     "ember-auto-import": "~2.2.0",
     "ember-cli": "~3.28.3",
     "ember-cli-app-version": "^5.0.0",
@@ -34,7 +34,7 @@
     "ember-cli-string-helpers": "~6.1.0",
     "ember-cli-template-lint": "^2.0.2",
     "ember-cli-uglify": "^3.0.0",
-    "ember-data": "~3.28.1",
+    "ember-data": "~5.3.4",
     "ember-export-application-global": "^2.0.1",
     "ember-load-initializers": "^2.1.2",
     "ember-maybe-import-regenerator": "^0.1.6",