diff --git a/demo/package.json b/demo/package.json
index 09c1cb7f61..0da373c7e8 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -4,13 +4,11 @@
   "version": "0.1.0",
   "dependencies": {
     "@primer/css": "^21.3.6",
+    "@primer/primitives": "^9.1.2",
     "@rails/actioncable": "^7.2.100",
     "@rails/ujs": "^7.1.400",
     "turbolinks": "^5.2.0"
   },
-  "peerDependencies": {
-    "@primer/primitives": "9.x || 10.x"
-  },
   "devDependencies": {
     "vite": "^5.4.8",
     "vite-plugin-ruby": "^5.1.0"