diff --git a/lib/plugins/wallet/bitgo/bitgo.js b/lib/plugins/wallet/bitgo/bitgo.js
index e62d6d1c..0565ffea 100644
--- a/lib/plugins/wallet/bitgo/bitgo.js
+++ b/lib/plugins/wallet/bitgo/bitgo.js
@@ -11,12 +11,14 @@ const NAME = 'BitGo'
 
 function buildBitgo (account) {
   const env = account.environment === 'test' ? 'test' : 'prod'
-  return new BitGo.BitGo({accessToken: account.token, env, userAgent: userAgent})
+  return new BitGo.BitGo({ accessToken: account.token, env, userAgent: userAgent })
 }
 
 function getWallet (account) {
   const bitgo = buildBitgo(account)
-  return bitgo.wallets().get({ id: account.walletId })
+  const coin = account.environment === 'test' ? 'tbtc' : 'btc'
+
+  return bitgo.coin(coin).wallets().get({ id: account.walletId })
 }
 
 function checkCryptoCode (cryptoCode) {
@@ -36,13 +38,13 @@ function sendCoins (account, address, cryptoAtoms, cryptoCode) {
         amount: cryptoAtoms.toNumber(),
         walletPassphrase: account.walletPassphrase
       }
-      return wallet.sendCoins(params)
+      return wallet.send(params)
     })
     .then(result => {
       return result.hash
     })
     .catch(err => {
-      if (err.message === 'Insufficient funds') throw new E.InsufficientFundsError()
+      if (err.message === 'insufficient funds') throw new E.InsufficientFundsError()
       throw err
     })
 }
@@ -50,7 +52,7 @@ function sendCoins (account, address, cryptoAtoms, cryptoCode) {
 function balance (account, cryptoCode) {
   return checkCryptoCode(cryptoCode)
     .then(() => getWallet(account))
-    .then(wallet => BN(wallet.wallet.spendableConfirmedBalance))
+    .then(wallet => BN(wallet._wallet.spendableBalanceString))
 }
 
 function newAddress (account, info) {
@@ -63,7 +65,7 @@ function newAddress (account, info) {
 
           // If a label was provided, set the label
           if (info.label) {
-            return wallet.setLabel({ address: address, label: info.label })
+            return wallet.updateAddress({ address: address, label: info.label })
               .then(() => address)
           }
 
@@ -75,12 +77,12 @@ function newAddress (account, info) {
 function getStatus (account, toAddress, requested, cryptoCode) {
   const bitgo = buildBitgo(account)
   return checkCryptoCode(cryptoCode)
-    .then(() => bitgo.blockchain().getAddress({address: toAddress}))
+    .then(() => bitgo.blockchain().getAddress({ address: toAddress }))
     .then(rec => {
-      if (rec.balance === 0) return {status: 'notSeen'}
-      if (requested.gt(rec.balance)) return {status: 'insufficientFunds'}
-      if (requested.gt(rec.confirmedBalance)) return {status: 'authorized'}
-      return {status: 'confirmed'}
+      if (rec.balance === 0) return { status: 'notSeen' }
+      if (requested.gt(rec.balance)) return { status: 'insufficientFunds' }
+      if (requested.gt(rec.confirmedBalance)) return { status: 'authorized' }
+      return { status: 'confirmed' }
     })
 }
 
@@ -92,10 +94,10 @@ function newFunding (account, cryptoCode) {
           return wallet.createAddress()
             .then(result => {
               const fundingAddress = result.address
-              return wallet.setLabel({address: fundingAddress, label: 'Funding Address'})
+              return wallet.updateAddress({ address: fundingAddress, label: 'Funding Address' })
                 .then(() => ({
-                  fundingPendingBalance: BN(wallet.wallet.balance),
-                  fundingConfirmedBalance: BN(wallet.wallet.confirmedBalance),
+                  fundingPendingBalance: BN(wallet._wallet.balanceString),
+                  fundingConfirmedBalance: BN(wallet._wallet.confirmedBalanceString),
                   fundingAddress
                 }))
             })
diff --git a/package-lock.json b/package-lock.json
index fc3451ae..1e04c7ba 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -75,6 +75,24 @@
       "resolved": "https://registry.npmjs.org/@fczbkk/uuid4/-/uuid4-3.0.0.tgz",
       "integrity": "sha1-lksiHLlV4csPBEdnqWaCgCOjhLs="
     },
+    "@types/lodash": {
+      "version": "4.14.118",
+      "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.118.tgz",
+      "integrity": "sha512-iiJbKLZbhSa6FYRip/9ZDX6HXhayXLDGY2Fqws9cOkEQ6XeKfaxB0sC541mowZJueYyMnVUmmG+al5/4fCDrgw=="
+    },
+    "@types/node": {
+      "version": "10.12.9",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.9.tgz",
+      "integrity": "sha512-eajkMXG812/w3w4a1OcBlaTwsFPO5F7fJ/amy+tieQxEMWBlbV1JGSjkFM+zkHNf81Cad+dfIRA+IBkvmvdAeA=="
+    },
+    "@types/ws": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/@types/ws/-/ws-3.2.1.tgz",
+      "integrity": "sha512-t5n0/iHoavnX1MqeYmKJgWc1W6yX4BXsNxQg7M5862RWrfN9S5k8yaWbDMGJSTCzbH7+q5QS8chjymd+ND9gMw==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -114,12 +132,11 @@
       "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
     },
     "agent-base": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-2.1.1.tgz",
-      "integrity": "sha1-1t4Q1a9hMtW9aSQn1G/FOFOQlMc=",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz",
+      "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==",
       "requires": {
-        "extend": "~3.0.0",
-        "semver": "~5.0.1"
+        "es6-promisify": "^5.0.0"
       }
     },
     "ajv": {
@@ -232,12 +249,11 @@
       }
     },
     "argparse": {
-      "version": "0.1.16",
-      "resolved": "https://registry.npmjs.org/argparse/-/argparse-0.1.16.tgz",
-      "integrity": "sha1-z9AeD7uj1srtBJ+9dY1A9lGW9Xw=",
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "requires": {
-        "underscore": "~1.7.0",
-        "underscore.string": "~2.4.0"
+        "sprintf-js": "~1.0.2"
       }
     },
     "arr-diff": {
@@ -371,6 +387,11 @@
       "integrity": "sha1-GdOGodntxufByF04iu28xW0zYC0=",
       "dev": true
     },
+    "async-limiter": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
+      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
+    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -950,16 +971,6 @@
         "babel-types": "^6.24.1"
       }
     },
-    "babel-polyfill": {
-      "version": "6.23.0",
-      "resolved": "https://registry.npmjs.org/babel-polyfill/-/babel-polyfill-6.23.0.tgz",
-      "integrity": "sha1-g2TKYt+Or7gwSZ9pkXdGbDsDSZ0=",
-      "requires": {
-        "babel-runtime": "^6.22.0",
-        "core-js": "^2.4.0",
-        "regenerator-runtime": "^0.10.0"
-      }
-    },
     "babel-register": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-register/-/babel-register-6.24.1.tgz",
@@ -1050,6 +1061,11 @@
         "safe-buffer": "^5.0.1"
       }
     },
+    "base32.js": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/base32.js/-/base32.js-0.1.0.tgz",
+      "integrity": "sha1-tYLexpPC8R6JPPBk7mrFthMaIgI="
+    },
     "base64-arraybuffer": {
       "version": "0.1.5",
       "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
@@ -1066,9 +1082,19 @@
       "integrity": "sha1-6sFuA+oUOO/5Qj1puqNiYu0fcLs="
     },
     "basic-auth": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-1.0.4.tgz",
-      "integrity": "sha1-Awk1sB3nyblKgksp8/zLdQ06UpA="
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-2.0.1.tgz",
+      "integrity": "sha512-NF+epuEdnUYVlGuhaxbbq+dvJttwLnGY+YixlXlME5KpQ5W3CnXA5cVTneY3SPbPDRkcjMbifrwmFYcClgOZeg==",
+      "requires": {
+        "safe-buffer": "5.1.2"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        }
+      }
     },
     "bcrypt-pbkdf": {
       "version": "1.0.1",
@@ -1079,6 +1105,11 @@
         "tweetnacl": "^0.14.3"
       }
     },
+    "bech32": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/bech32/-/bech32-0.0.3.tgz",
+      "integrity": "sha512-O+K1w8P/aAOLcYwwQ4sbiPYZ51ZIW95lnS4/6nE8Aib/z+OOddQIIPdu2qi94qGDp4HhYy/wJotttXKkak1lXg=="
+    },
     "better-assert": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/better-assert/-/better-assert-1.0.2.tgz",
@@ -1089,7 +1120,7 @@
     },
     "big.js": {
       "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/big.js/-/big.js-3.1.3.tgz",
+      "resolved": "http://registry.npmjs.org/big.js/-/big.js-3.1.3.tgz",
       "integrity": "sha1-TK2iGTZS6zyp7I5VyQFWacmAaXg="
     },
     "bigi": {
@@ -1134,9 +1165,9 @@
       }
     },
     "bitcoin-ops": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/bitcoin-ops/-/bitcoin-ops-1.3.0.tgz",
-      "integrity": "sha1-axJrWFU3vGebAu1JnxRFDP/DfhM="
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/bitcoin-ops/-/bitcoin-ops-1.4.1.tgz",
+      "integrity": "sha512-pef6gxZFztEhaE9RY9HmWVmiIHqCb2OyS4HPKkpc6CIiiOa3Qmuoylxc5P2EkU3w+5eTSifI9SEZC88idAIGow=="
     },
     "bitcoind-rpc": {
       "version": "0.7.0",
@@ -1144,44 +1175,84 @@
       "integrity": "sha1-2/YkkmfuMovkjeV3hwQpgAksi/I="
     },
     "bitcoinjs-lib": {
-      "version": "2.1.4",
-      "resolved": "https://registry.npmjs.org/bitcoinjs-lib/-/bitcoinjs-lib-2.1.4.tgz",
-      "integrity": "sha1-1PwjWwZaoZxI4R2RNu6rB7OMFTQ=",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/bitcoinjs-lib/-/bitcoinjs-lib-3.0.3.tgz",
+      "integrity": "sha1-NHDu1dZ3i1QEt3Dv+9D8uyvYllU=",
       "requires": {
         "bigi": "^1.4.0",
         "bip66": "^1.1.0",
-        "bs58check": "^1.0.5",
-        "buffer-equals": "^1.0.3",
-        "buffer-reverse": "^1.0.0",
+        "bitcoin-ops": "^1.3.0",
+        "bs58check": "^2.0.0",
         "create-hash": "^1.1.0",
         "create-hmac": "^1.1.3",
         "ecurve": "^1.0.0",
+        "merkle-lib": "^2.0.10",
+        "pushdata-bitcoin": "^1.0.1",
         "randombytes": "^2.0.1",
-        "typeforce": "^1.5.5",
-        "wif": "^1.1.0"
+        "typeforce": "^1.8.7",
+        "varuint-bitcoin": "^1.0.4",
+        "wif": "^2.0.1"
       },
       "dependencies": {
-        "base-x": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/base-x/-/base-x-1.1.0.tgz",
-          "integrity": "sha1-QtPXF0dPnqAiB/bRqh9CaRPut6w="
-        },
         "bs58": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/bs58/-/bs58-3.1.0.tgz",
-          "integrity": "sha1-1MJjiL9IBMrHFBQbGUWqR+XrJI4=",
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/bs58/-/bs58-4.0.1.tgz",
+          "integrity": "sha1-vhYedsNU9veIrkBx9j806MTwpCo=",
           "requires": {
-            "base-x": "^1.1.0"
+            "base-x": "^3.0.2"
           }
         },
         "bs58check": {
-          "version": "1.3.4",
-          "resolved": "https://registry.npmjs.org/bs58check/-/bs58check-1.3.4.tgz",
-          "integrity": "sha1-xSVABzdJEXcU+gQsMEfrj5FRy/g=",
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/bs58check/-/bs58check-2.1.2.tgz",
+          "integrity": "sha512-0TS1jicxdU09dwJMNZtVAfzPi6Q6QeN0pM1Fkzrjn+XYHvzMKPU3pHVpva+769iNVSfIYWf7LJ6WR+BuuMf8cA==",
           "requires": {
-            "bs58": "^3.1.0",
-            "create-hash": "^1.1.0"
+            "bs58": "^4.0.0",
+            "create-hash": "^1.1.0",
+            "safe-buffer": "^5.1.2"
           }
+        },
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        }
+      }
+    },
+    "bitcoinjs-message": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/bitcoinjs-message/-/bitcoinjs-message-2.0.0.tgz",
+      "integrity": "sha512-H5pJC7/eSqVjREiEOZ4jifX+7zXYP3Y28GIOIqg9hrgE7Vj8Eva9+HnVqnxwA1rJPOwZKuw0vo6k0UxgVc6q1A==",
+      "requires": {
+        "bs58check": "^2.0.2",
+        "buffer-equals": "^1.0.3",
+        "create-hash": "^1.1.2",
+        "secp256k1": "^3.0.1",
+        "varuint-bitcoin": "^1.0.1"
+      },
+      "dependencies": {
+        "bs58": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/bs58/-/bs58-4.0.1.tgz",
+          "integrity": "sha1-vhYedsNU9veIrkBx9j806MTwpCo=",
+          "requires": {
+            "base-x": "^3.0.2"
+          }
+        },
+        "bs58check": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/bs58check/-/bs58check-2.1.2.tgz",
+          "integrity": "sha512-0TS1jicxdU09dwJMNZtVAfzPi6Q6QeN0pM1Fkzrjn+XYHvzMKPU3pHVpva+769iNVSfIYWf7LJ6WR+BuuMf8cA==",
+          "requires": {
+            "bs58": "^4.0.0",
+            "create-hash": "^1.1.0",
+            "safe-buffer": "^5.1.2"
+          }
+        },
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
         }
       }
     },
@@ -1262,66 +1333,149 @@
       }
     },
     "bitgo": {
-      "version": "3.4.11",
-      "resolved": "https://registry.npmjs.org/bitgo/-/bitgo-3.4.11.tgz",
-      "integrity": "sha1-YyBiI0iFSXSaFT1bADIXw+WlG40=",
+      "version": "4.40.2",
+      "resolved": "https://registry.npmjs.org/bitgo/-/bitgo-4.40.2.tgz",
+      "integrity": "sha512-rQY92xdUaI1yKGyBmlAk6/uoLUj4H13Jla0g+q8Hmw30rniX1QUF7Kfwe7KsmIb/JnVse3Kt5omqg6PYQQIl2A==",
       "requires": {
-        "argparse": "~0.1.16",
+        "argparse": "~1.0.10",
         "assert": "0.4.9",
         "big.js": "~3.1.3",
         "bigi": "1.4.0",
         "bignumber.js": "~4.0.2",
-        "bitcoinjs-lib": "2.1.4",
-        "body-parser": "~1.17.2",
+        "bitcoinjs-message": "~2.0.0",
+        "bitgo-utxo-lib": "^1.2.1",
+        "bluebird": "~3.5.0",
+        "body-parser": "~1.18.2",
         "bs58": "2.0.1",
         "bs58check": "1.0.4",
+        "cashaddress": "1.1.0",
         "create-hmac": "~1.1.4",
+        "debug": "~3.1.0",
         "ecurve": "~1.0.2",
         "eol": "0.5.0",
         "ethereumjs-abi": "~0.6.2",
+        "ethereumjs-tx": "^1.3.4",
         "ethereumjs-util": "~4.4.1",
-        "express": "~4.15.3",
+        "express": "~4.16.2",
         "http-proxy": "1.11.1",
-        "lodash": "4.13.1",
+        "lodash": "~4.17.10",
         "minimist": "0.2.0",
-        "moment": "~2.18.1",
-        "morgan": "1.5.3",
-        "prova-lib": "~0.2.6",
-        "q": "1.1.2",
-        "ripple-lib": "~0.17.7",
+        "moment": "~2.20.1",
+        "morgan": "1.9.0",
+        "prova-lib": "0.2.9",
+        "ripple-lib": "~0.22.0",
         "sanitize-html": "1.13.0",
         "secp256k1": "3.2.5",
-        "superagent": "~3.5.2",
-        "superagent-proxy": "~1.0.0",
-        "underscore.string": "2.4.0"
+        "secrets.js-grempe": "1.1.0",
+        "stellar-sdk": "~0.11.0",
+        "superagent": "~3.8.3",
+        "superagent-proxy": "~1.0.0"
       },
       "dependencies": {
+        "accepts": {
+          "version": "1.3.5",
+          "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+          "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+          "requires": {
+            "mime-types": "~2.1.18",
+            "negotiator": "0.6.1"
+          }
+        },
         "bignumber.js": {
           "version": "4.0.4",
           "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-4.0.4.tgz",
           "integrity": "sha512-LDXpJKVzEx2/OqNbG9mXBNvHuiRL4PzHCGfnANHMJ+fv68Ads3exDVJeGDJws+AoNEuca93bU3q+S0woeUaCdg=="
         },
-        "debug": {
-          "version": "2.2.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+        "body-parser": {
+          "version": "1.18.3",
+          "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
+          "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
           "requires": {
-            "ms": "0.7.1"
+            "bytes": "3.0.0",
+            "content-type": "~1.0.4",
+            "debug": "2.6.9",
+            "depd": "~1.1.2",
+            "http-errors": "~1.6.3",
+            "iconv-lite": "0.4.23",
+            "on-finished": "~2.3.0",
+            "qs": "6.5.2",
+            "raw-body": "2.3.3",
+            "type-is": "~1.6.16"
+          },
+          "dependencies": {
+            "debug": {
+              "version": "2.6.9",
+              "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+              "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+              "requires": {
+                "ms": "2.0.0"
+              }
+            }
+          }
+        },
+        "bytes": {
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+      "integrity": "sha512-/92DTTorg4JjktLNLe6GPS2/RvAd/RGr6LuktmWSMLEOa6rjnlrFXNgSbSmkNvCoL2T028A0a1JaJLzRMlFoHg==",
+      "requires": {
+        "querystringify": "^2.0.0",
+        "requires-port": "^1.0.0"
+      },
+      "dependencies": {
+        "requires-port": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
+          "integrity": "sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8="
+        }
+      }
+    },
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       "resolved": "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-1.0.0.tgz",
@@ -9831,18 +10582,11 @@
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     },
     "util": {
-      "version": "0.10.3",
-      "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
-      "integrity": "sha1-evsa/lCAUkZInj23/g7TeTNqwPk=",
+      "version": "0.11.1",
+      "resolved": "https://registry.npmjs.org/util/-/util-0.11.1.tgz",
+      "integrity": "sha512-HShAsny+zS2TZfaXxD9tYj4HQGlBezXZMZuM/S5PKLLoZkShZiGk9o5CzukI1LVHZvjdvZ2Sj1aW/Ndn2NB/HQ==",
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-      },
-      "dependencies": {
-        "inherits": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
-          "integrity": "sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE="
-        }
+        "inherits": "2.0.3"
       }
     },
     "util-deprecate": {
@@ -9877,9 +10621,12 @@
       }
     },
     "varuint-bitcoin": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/varuint-bitcoin/-/varuint-bitcoin-1.0.4.tgz",
-      "integrity": "sha1-2BLF2uFuMvYFRLat7h1L4TB9AoM="
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/varuint-bitcoin/-/varuint-bitcoin-1.1.0.tgz",
+      "integrity": "sha512-jCEPG+COU/1Rp84neKTyDJQr478/hAfVp5xxYn09QEH0yBjbmPeMfuuQIrp+BUD83hybtYZKhr5elV3bvdV1bA==",
+      "requires": {
+        "safe-buffer": "^5.1.1"
+      }
     },
     "vary": {
       "version": "1.1.1",
@@ -9943,35 +10690,11 @@
       }
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-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/wif/-/wif-1.2.1.tgz",
-      "integrity": "sha1-qoGlfcH+yGtIT7509KtfZftR4EM=",
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/wif/-/wif-2.0.6.tgz",
+      "integrity": "sha1-CNP1IFbGZnkplyb63g1DKudLRwQ=",
       "requires": {
-        "bs58check": "^1.0.6"
-      },
-      "dependencies": {
-        "base-x": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/base-x/-/base-x-1.1.0.tgz",
-          "integrity": "sha1-QtPXF0dPnqAiB/bRqh9CaRPut6w="
-        },
-        "bs58": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/bs58/-/bs58-3.1.0.tgz",
-          "integrity": "sha1-1MJjiL9IBMrHFBQbGUWqR+XrJI4=",
-          "requires": {
-            "base-x": "^1.1.0"
-          }
-        },
-        "bs58check": {
-          "version": "1.3.4",
-          "resolved": "https://registry.npmjs.org/bs58check/-/bs58check-1.3.4.tgz",
-          "integrity": "sha1-xSVABzdJEXcU+gQsMEfrj5FRy/g=",
-          "requires": {
-            "bs58": "^3.1.0",
-            "create-hash": "^1.1.0"
-          }
-        }
+        "bs58check": "<3.0.0"
       }
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     "window-size": {
@@ -10107,7 +10830,7 @@
       "dependencies": {
         "base-x": {
           "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/base-x/-/base-x-1.1.0.tgz",
+          "resolved": "http://registry.npmjs.org/base-x/-/base-x-1.1.0.tgz",
           "integrity": "sha1-QtPXF0dPnqAiB/bRqh9CaRPut6w="
         }
       }
diff --git a/package.json b/package.json
index 8bf15105..d197a9ed 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "bitcoind-rpc": "^0.7.0",
     "bitcore-lib": "^0.15.0",
     "bitcore-lib-cash": "git+https://github.com/bitpay/bitcore-lib.git#cash",
-    "bitgo": "3.4.11",
+    "bitgo": "4.40.2",
     "body-parser": "^1.15.1",
     "coinbase": "^2.0.6",
     "console-log-level": "^1.4.0",