diff --git a/package.json b/package.json
index 1cb179a..79ddaac 100644
--- a/package.json
+++ b/package.json
@@ -53,10 +53,10 @@
     "mocha": "*"
   },
   "dependencies": {
-    "bn.js": "^1.0.0",
+    "bn.js": "^2.0.0",
     "bs58": "^2.0.0",
     "buffer-equal": "~0.0.1",
-    "eccrypto": "^0.9.6",
+    "eccrypto": "^0.9.7",
     "es6-promise": "^2.0.1",
     "hash.js": "^1.0.2",
     "inherits": "^2.0.1",