diff --git a/package.json b/package.json
index a2868e7..9ec1de9 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   },
   "homepage": "https://github.com/pillarwallet/pillar-authentication-sdk#readme",
   "dependencies": {
-    "elliptic": "6.4.0",
+    "elliptic": "6.5.4",
     "jest": "22.4.3",
     "js-sha3": "0.7.0",
     "jshashes": "1.0.7",
diff --git a/yarn.lock b/yarn.lock
index a0d2832..b48ec51 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -358,9 +358,9 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-bn.js@^4.4.0:
-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
+bn.js@^4.11.9:
+  version "4.12.0"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
 
 boom@4.x.x:
   version "4.3.1"
@@ -404,7 +404,7 @@ braces@^2.3.1:
     split-string "^3.0.2"
     to-regex "^3.0.1"
 
-brorand@^1.0.1:
+brorand@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
 
@@ -723,17 +723,17 @@ ecc-jsbn@~0.1.1:
   dependencies:
     jsbn "~0.1.0"
 
-elliptic@^6.4.0:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
+elliptic@6.5.4:
+  version "6.5.4"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
   dependencies:
-    bn.js "^4.4.0"
-    brorand "^1.0.1"
+    bn.js "^4.11.9"
+    brorand "^1.1.0"
     hash.js "^1.0.0"
-    hmac-drbg "^1.0.0"
-    inherits "^2.0.1"
-    minimalistic-assert "^1.0.0"
-    minimalistic-crypto-utils "^1.0.0"
+    hmac-drbg "^1.0.1"
+    inherits "^2.0.4"
+    minimalistic-assert "^1.0.1"
+    minimalistic-crypto-utils "^1.0.1"
 
 encoding@^0.1.11:
   version "0.1.12"
@@ -1178,7 +1178,7 @@ hawk@~6.0.2:
     hoek "4.x.x"
     sntp "2.x.x"
 
-hmac-drbg@^1.0.0:
+hmac-drbg@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
   dependencies:
@@ -1249,9 +1249,9 @@ inflight@^1.0.4:
     once "^1.3.0"
     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"
+inherits@2, inherits@^2.0.3, inherits@^2.0.4, inherits@~2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
 
 ini@~1.3.0:
   version "1.3.5"
@@ -1802,14 +1802,14 @@ jest-worker@^22.4.3:
   dependencies:
     merge-stream "^1.0.1"
 
-jest@^22.4.3:
+jest@22.4.3:
   version "22.4.3"
   resolved "https://registry.yarnpkg.com/jest/-/jest-22.4.3.tgz#2261f4b117dc46d9a4a1a673d2150958dee92f16"
   dependencies:
     import-local "^1.0.0"
     jest-cli "^22.4.3"
 
-js-sha3@^0.7.0:
+js-sha3@0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.7.0.tgz#0a5c57b36f79882573b2d84051f8bb85dd1bd63a"
 
@@ -1863,7 +1863,7 @@ jsesc@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
 
-jshashes@^1.0.7:
+jshashes@1.0.7:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/jshashes/-/jshashes-1.0.7.tgz#bed8c97a0e9632fd0513916f55f76dd5486be59f"
 
@@ -2071,11 +2071,11 @@ mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
 
-minimalistic-assert@^1.0.0:
+minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"
 
-minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
+minimalistic-crypto-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
 
@@ -2518,7 +2518,7 @@ rc@^1.1.7:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
-react@^16.3.2:
+react@16.3.2:
   version "16.3.2"
   resolved "https://registry.yarnpkg.com/react/-/react-16.3.2.tgz#fdc8420398533a1e58872f59091b272ce2f91ea9"
   dependencies: