diff --git a/package.json b/package.json
index 09e3703..659f782 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "axios": "^1.12.2",
     "ccxt": "^4.5.5",
     "dotenv": "^17.2.2",
-    "ethereum-cryptography": "^1.4.0",
+    "ethereum-cryptography": "^2.1.3",
     "ink": "^6.3.1",
     "react": "^19.1.1",
     "ws": "^8.18.3"