diff --git a/yarn.lock b/yarn.lock
index afff838..f7409d6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -785,8 +785,8 @@ bluebird@^3.5.0, bluebird@^3.5.1, bluebird@^3.5.3:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.3.tgz#7d01c6f9616c9a51ab0f8c549a79dfe6ec33efa7"
 
 bn.js@^4.11.3, bn.js@^4.11.8, bn.js@^4.4.0:
-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
+  version "4.11.9"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.9.tgz#26d556829458f9d1e81fc48952493d0ba3507828"
 
 borc@^2.1.0:
   version "2.1.0"
@@ -1455,8 +1455,8 @@ ecc-tools@^1.0.14:
     triplesec "^3.0.25"
 
 elliptic@^6.2.3:
-  version "6.4.1"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.1.tgz#c2d0b7776911b86722c632c3c06c60f2f819939a"
+  version "6.5.3"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.3.tgz#cb59eb2efdaf73a0bd78ccd7015a62ad6e0f93d6"
   dependencies:
     bn.js "^4.4.0"
     brorand "^1.0.1"