diff --git a/package.json b/package.json
index c0f02240..25a29a90 100644
--- a/package.json
+++ b/package.json
@@ -21,5 +21,8 @@
         "pusher-js": "^7.1.1-beta",
         "tailwindcss": "^3.1.0",
         "vite": "^4.0.0"
+    },
+    "dependencies": {
+        "mapshaper": "^0.6.24"
     }
 }