diff --git a/package.json b/package.json
index 7e64e20..0c3ca3b 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "babel-eslint": "^10.1.0",
     "broccoli-asset-rev": "^3.0.0",
     "ember-auto-import": "^1.11.3",
-    "ember-cli": "~3.28.3",
+    "ember-cli": "~3.28.4",
     "ember-cli-dependency-checker": "^3.2.0",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
diff --git a/tests/dummy/config/ember-cli-update.json b/tests/dummy/config/ember-cli-update.json
index df60b2f..d253eb2 100644
--- a/tests/dummy/config/ember-cli-update.json
+++ b/tests/dummy/config/ember-cli-update.json
@@ -3,7 +3,7 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.3",
+      "version": "3.28.4",
       "blueprints": [
         {
           "name": "addon",