diff --git a/yarn.lock b/yarn.lock
index 197cc4d..36f5545 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -795,8 +795,8 @@ bluebird@^3.5.1:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.3.tgz#7d01c6f9616c9a51ab0f8c549a79dfe6ec33efa7"
 
 bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.11.3, 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"
 
 boxen@^0.6.0:
   version "0.6.0"
@@ -1703,8 +1703,8 @@ ecc-jsbn@~0.1.1:
     safer-buffer "^2.1.0"
 
 elliptic@^6.0.0, 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"
@@ -2424,8 +2424,8 @@ inflight@^1.0.4:
     wrappy "1"
 
 inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
 
 ini@^1.3.2, ini@^1.3.4, ini@~1.3.0:
   version "1.3.5"