diff --git a/package.json b/package.json
index 0e034eb..be5d9eb 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "bn.js": "=4.11.8",
     "bs58": "=4.0.1",
     "buffer-compare": "=1.1.1",
-    "elliptic": "=6.4.0",
+    "elliptic": "=6.6.0",
     "inherits": "=2.0.1",
     "lodash": "=4.17.11",
     "url": "*"