diff --git a/files/package.json b/files/package.json
index 3c24ad0..cf2f26f 100644
--- a/files/package.json
+++ b/files/package.json
@@ -7,7 +7,8 @@
   "devDependencies": {
     "concurrently": "^8.2.0",
     "prettier": "^3.0.3",
-    "prettier-plugin-ember-template-tag": "^1.1.0"
+    "prettier-plugin-ember-template-tag": "^1.1.0"<% if (typescript) { %>,
+    "@glint/core": "^1.2.1"<% } %>    
   },
   "workspaces": [
     "<%= addonInfo.location %>",