diff --git a/package.json b/package.json
index f84268a5..2375da4e 100644
--- a/package.json
+++ b/package.json
@@ -29,17 +29,20 @@
     "lodash.isequal": "^4.5.0",
     "ripple-address-codec": "^4.1.1",
     "ripple-binary-codec": "^1.1.0",
-    "ripple-keypairs": "^1.0.0",
+    "ripple-keypairs": "^1.0.3",
     "ripple-lib-transactionparser": "0.8.2",
     "ws": "^7.2.0"
   },
+  "resolutions": {
+    "elliptic": "^6.5.4"
+  },
   "devDependencies": {
     "@types/mocha": "^7.0.1",
     "@types/node": "^14.0.1",
     "@typescript-eslint/eslint-plugin": "^2.3.3",
     "@typescript-eslint/parser": "^2.27.0",
-    "assert-diff": "^3.0.0",
     "assert": "^2.0.0",
+    "assert-diff": "^3.0.0",
     "buffer": "^6.0.2",
     "crypto-browserify": "^3.12.0",
     "doctoc": "^1.4.0",
diff --git a/yarn.lock b/yarn.lock
index d6641aac..2c90cce3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -719,11 +719,16 @@ binary-extensions@^2.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.1.0.tgz#30fa40c9e7fe07dbc895678cd287024dea241dd9"
   integrity sha512-1Yj8h9Q+QDF5FzhMs/c9+6UntbD5MkRfRwac8DoEm9ZfUBZ7tZ55YcGVAzEe4bXsdQHEk+s9S5wsOKVdZrw0tQ==
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.4.0:
+bn.js@^4.0.0, bn.js@^4.1.0:
   version "4.11.9"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.9.tgz#26d556829458f9d1e81fc48952493d0ba3507828"
   integrity sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw==
 
+bn.js@^4.11.9:
+  version "4.12.0"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
+  integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
+
 bn.js@^5.0.0, bn.js@^5.1.1:
   version "5.1.3"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.1.3.tgz#beca005408f642ebebea80b042b4d18d2ac0ee6b"
@@ -765,7 +770,7 @@ braces@~3.0.2:
   dependencies:
     fill-range "^7.0.1"
 
-brorand@^1.0.1, brorand@^1.0.5:
+brorand@^1.0.1, brorand@^1.0.5, brorand@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
   integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=
@@ -1359,18 +1364,18 @@ electron-to-chromium@^1.3.612:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.616.tgz#de63d1c79bb8eb61168774df0c11c9e1af69f9e8"
   integrity sha512-CI8L38UN2BEnqXw3/oRIQTmde0LiSeqWSRlPA42ZTYgJQ8fYenzAM2Z3ni+jtILTcrs5aiXZCGJ96Pm+3/yGyQ==
 
-elliptic@^6.5.2, elliptic@^6.5.3:
-  version "6.5.3"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.3.tgz#cb59eb2efdaf73a0bd78ccd7015a62ad6e0f93d6"
-  integrity sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==
+elliptic@^6.5.2, elliptic@^6.5.3, elliptic@^6.5.4:
+  version "6.5.4"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
+  integrity sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==
   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"
 
 emoji-regex@^7.0.1:
   version "7.0.3"
@@ -2014,7 +2019,7 @@ he@1.2.0:
   resolved "https://registry.yarnpkg.com/heap/-/heap-0.2.6.tgz#087e1f10b046932fc8594dd9e6d378afc9d1e5ac"
   integrity sha1-CH4fELBGky/IWU3Z5tN4r8nR5aw=
 
-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"
   integrity sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=
@@ -2635,7 +2640,7 @@ minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
   resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"
   integrity sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==
 
-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"
   integrity sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo=
@@ -3333,7 +3338,7 @@ ripple-binary-codec@^1.1.0:
     decimal.js "^10.2.0"
     ripple-address-codec "^4.1.1"
 
-ripple-keypairs@^1.0.0:
+ripple-keypairs@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/ripple-keypairs/-/ripple-keypairs-1.0.3.tgz#346f15fa25e020e0afaa7f6e31fe398e119344b2"
   integrity sha512-Na5q8sUdxjd5DXBM88ocJgL2Ig0I1USyO3bvI0SMxJPp7F9DHvqLdPX45PVXs7HUq0Dj691Z9Uz9NeD/K7/eOA==