diff --git a/addon/package.json b/addon/package.json
index 8549ad98a..6b6792fd0 100644
--- a/addon/package.json
+++ b/addon/package.json
@@ -65,7 +65,7 @@
     "@embroider/addon-dev": "^5.0.0",
     "@glint/template": "^1.4.0",
     "@rollup/plugin-babel": "^6.0.4",
-    "@tsconfig/ember": "^3.0.6",
+    "@tsconfig/ember": "^3.0.8",
     "@types/rsvp": "^4.0.9",
     "@typescript-eslint/eslint-plugin": "^8.2.0",
     "@typescript-eslint/parser": "^8.2.0",
diff --git a/type-tests/package.json b/type-tests/package.json
index b80eafa61..6da1f3688 100644
--- a/type-tests/package.json
+++ b/type-tests/package.json
@@ -9,7 +9,7 @@
   },
   "devDependencies": {
     "@ember/test-helpers": "workspace:*",
-    "@tsconfig/ember": "^2.0.0",
+    "@tsconfig/ember": "^3.0.8",
     "@types/rsvp": "^4.0.9",
     "dom-element-descriptors": "^0.5.0",
     "ember-source": "~5.9.0",