diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 49e3cd40..19fd74e5
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "ethereumjs-util": "6.1.0",
     "rlp": "2.2.3",
     "scrypt-async": "2.0.1",
-    "tweetnacl": "1.0.1",
+    "tweetnacl": "1.0.3",
     "tweetnacl-util": "0.15.0",
     "web3": "0.20.7"
   },