update `yarn.lock`

yarn.lock

@@ -4014,7 +4014,7 @@ bn.js@4.11.8:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
   integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.6, bn.js@^4.11.8, bn.js@^4.4.0, bn.js@^4.8.0:
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.10.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.6, bn.js@^4.11.8, bn.js@^4.4.0, bn.js@^4.8.0:
   version "4.11.9"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.9.tgz#26d556829458f9d1e81fc48952493d0ba3507828"
   integrity sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw==
@@ -6962,6 +6962,18 @@ eth-sig-util@^1.4.2:
     ethereumjs-abi "git+https://github.com/ethereumjs/ethereumjs-abi.git"
     ethereumjs-util "^5.1.1"
 
+eth-sig-util@^2.5.3:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/eth-sig-util/-/eth-sig-util-2.5.3.tgz#6938308b38226e0b3085435474900b03036abcbe"
+  integrity sha512-KpXbCKmmBUNUTGh9MRKmNkIPietfhzBqqYqysDavLseIiMUGl95k6UcPEkALAZlj41e9E6yioYXc1PC333RKqw==
+  dependencies:
+    buffer "^5.2.1"
+    elliptic "^6.4.0"
+    ethereumjs-abi "0.6.5"
+    ethereumjs-util "^5.1.1"
+    tweetnacl "^1.0.0"
+    tweetnacl-util "^0.15.0"
+
 eth-tx-summary@^3.1.2:
   version "3.2.4"
   resolved "https://registry.yarnpkg.com/eth-tx-summary/-/eth-tx-summary-3.2.4.tgz#e10eb95eb57cdfe549bf29f97f1e4f1db679035c"
@@ -7040,6 +7052,14 @@ ethereum-public-key-to-address@0.0.1:
     meow "^5.0.0"
     secp256k1 "^3.7.1"
 
+ethereumjs-abi@0.6.5:
+  version "0.6.5"
+  resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.5.tgz#5a637ef16ab43473fa72a29ad90871405b3f5241"
+  integrity sha1-WmN+8Wq0NHP6cqKa2QhxQFs/UkE=
+  dependencies:
+    bn.js "^4.10.0"
+    ethereumjs-util "^4.3.0"
+
 ethereumjs-abi@0.6.8, "ethereumjs-abi@git+https://github.com/ethereumjs/ethereumjs-abi.git":
   version "0.6.8"
   resolved "git+https://github.com/ethereumjs/ethereumjs-abi.git#1cfbb13862f90f0b391d8a699544d5fe4dfb8c7b"
@@ -7110,7 +7130,7 @@ ethereumjs-tx@^2.1.1, ethereumjs-tx@^2.1.2:
     ethereumjs-common "^1.5.0"
     ethereumjs-util "^6.0.0"
 
-ethereumjs-util@4.5.0:
+ethereumjs-util@4.5.0, ethereumjs-util@^4.3.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-4.5.0.tgz#3e9428b317eebda3d7260d854fddda954b1f1bc6"
   integrity sha1-PpQosxfuvaPXJg2FT93alUsfG8Y=
@@ -16106,11 +16126,21 @@ tunnel@^0.0.6:
   resolved "https://registry.yarnpkg.com/tunnel/-/tunnel-0.0.6.tgz#72f1314b34a5b192db012324df2cc587ca47f92c"
   integrity sha512-1h/Lnq9yajKY2PEbBadPXj3VxsDDu844OnaAo52UVmIzIvwwtBPIuNvkjuzBlTWpfJyUbG3ez0KSBibQkj4ojg==
 
+tweetnacl-util@^0.15.0:
+  version "0.15.1"
+  resolved "https://registry.yarnpkg.com/tweetnacl-util/-/tweetnacl-util-0.15.1.tgz#b80fcdb5c97bcc508be18c44a4be50f022eea00b"
+  integrity sha512-RKJBIj8lySrShN4w6i/BonWp2Z/uxwC3h4y7xsRrpP59ZboCd0GpEVsOnMDYLMmKBpYhb5TgHzZXy7wTfYFBRw==
+
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
   integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
+tweetnacl@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.3.tgz#ac0af71680458d8a6378d0d0d050ab1407d35596"
+  integrity sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==
+
 type-check@~0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
@@ -17021,9 +17051,9 @@ web3-provider-engine@^15.0.4:
     xhr "^2.2.0"
     xtend "^4.0.1"
 
-"web3-provider-engine@git+https://github.com/trufflesuite/provider-engine.git#web3-one":
+"web3-provider-engine@https://github.com/trufflesuite/provider-engine#web3-one":
   version "14.0.6"
-  resolved "git+https://github.com/trufflesuite/provider-engine.git#3538c60bc4836b73ccae1ac3f64c8fed8ef19c1a"
+  resolved "https://github.com/trufflesuite/provider-engine#3538c60bc4836b73ccae1ac3f64c8fed8ef19c1a"
   dependencies:
     async "^2.5.0"
     backoff "^2.5.0"