diff --git a/big-dipper-backend/yarn.lock b/big-dipper-backend/yarn.lock
index 16689dda27..a582c2f642 100644
--- a/big-dipper-backend/yarn.lock
+++ b/big-dipper-backend/yarn.lock
@@ -985,7 +985,7 @@ bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.11.9:
   version "4.12.0"
   resolved "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz"
 
-bn.js@^5.0.0, bn.js@^5.1.1:
+bn.js@^5.0.0, bn.js@^5.2.1:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.1.tgz#0bc527a6a0d18d0aa8d5b0538ce4a77dccfa7b70"
 
@@ -1050,7 +1050,7 @@ browserify-des@^1.0.0:
     inherits "^2.0.1"
     safe-buffer "^5.1.2"
 
-browserify-rsa@^4.0.0, browserify-rsa@^4.0.1:
+browserify-rsa@^4.0.0, browserify-rsa@^4.1.0:
   version "4.1.0"
   resolved "https://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.1.0.tgz"
   dependencies:
@@ -1058,18 +1058,18 @@ browserify-rsa@^4.0.0, browserify-rsa@^4.0.1:
     randombytes "^2.0.1"
 
 browserify-sign@^4.0.0:
-  version "4.2.1"
-  resolved "https://registry.npmjs.org/browserify-sign/-/browserify-sign-4.2.1.tgz"
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/browserify-sign/-/browserify-sign-4.2.2.tgz#e78d4b69816d6e3dd1c747e64e9947f9ad79bc7e"
   dependencies:
-    bn.js "^5.1.1"
-    browserify-rsa "^4.0.1"
+    bn.js "^5.2.1"
+    browserify-rsa "^4.1.0"
     create-hash "^1.2.0"
     create-hmac "^1.1.7"
-    elliptic "^6.5.3"
+    elliptic "^6.5.4"
     inherits "^2.0.4"
-    parse-asn1 "^5.1.5"
-    readable-stream "^3.6.0"
-    safe-buffer "^5.2.0"
+    parse-asn1 "^5.1.6"
+    readable-stream "^3.6.2"
+    safe-buffer "^5.2.1"
 
 browserify-zlib@^0.2.0:
   version "0.2.0"
@@ -3813,7 +3813,7 @@ parent-module@^1.0.0:
   dependencies:
     callsites "^3.0.0"
 
-parse-asn1@^5.0.0, parse-asn1@^5.1.5:
+parse-asn1@^5.0.0, parse-asn1@^5.1.6:
   version "5.1.6"
   resolved "https://registry.npmjs.org/parse-asn1/-/parse-asn1-5.1.6.tgz"
   dependencies:
@@ -4333,6 +4333,14 @@ readable-stream@^3.1.1, readable-stream@^3.5.0, readable-stream@^3.6.0:
     string_decoder "^1.1.1"
     util-deprecate "^1.0.1"
 
+readable-stream@^3.6.2:
+  version "3.6.2"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.2.tgz#56a9b36ea965c00c5a93ef31eb111a0f11056967"
+  dependencies:
+    inherits "^2.0.3"
+    string_decoder "^1.1.1"
+    util-deprecate "^1.0.1"
+
 regenerator-runtime@^0.10.5:
   version "0.10.5"
   resolved "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz"
@@ -4478,7 +4486,7 @@ rxjs@6, rxjs@^6.4.0:
   dependencies:
     tslib "^1.9.0"
 
-safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@~5.2.0:
+safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@^5.2.1, safe-buffer@~5.2.0:
   version "5.2.1"
   resolved "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz"