diff --git a/packages/core/project.json b/packages/core/project.json
index d1b92c9..20f19d6 100644
--- a/packages/core/project.json
+++ b/packages/core/project.json
@@ -20,7 +20,15 @@
         "tsConfig": "packages/core/tsconfig.lib.json",
         "project": "packages/core/package.json",
         "entryFile": "packages/core/src/index.ts",
-        "external": ["react", "react-dom", "react/jsx-runtime"],
+        "external": [
+          "@remix-run/router",
+          "core-js",
+          "react",
+          "react-dom",
+          "react-router",
+          "react-router-dom",
+          "react/jsx-runtime"
+        ],
         "rollupConfig": "@nx/react/plugins/bundle-rollup",
         "compiler": "babel",
         "assets": [