diff --git a/package.json b/package.json
index 8af07b0..fba0a08 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,6 @@
     "typescript": "^5.1.6"
   },
   "dependencies": {
-    "big-number": "^2.0.0"
+    "bignumber.js": "^9.1.1"
   }
 }