diff --git a/package-lock.json b/package-lock.json
index 095e0df..e91ff81 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -131,7 +131,7 @@
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             "resolved": "https://registry.npmjs.org/@uphold/request-logger/-/request-logger-2.0.0.tgz",
-            "integrity": "sha1-xYXAvblCEBmJRcZZfk/iPW5j4IQ=",
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             "requires": {
                 "uuid": "^3.0.1"
             }
@@ -725,12 +725,11 @@
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         "bitcoin-core": {
-            "version": "2.3.0",
-            "resolved": "https://registry.npmjs.org/bitcoin-core/-/bitcoin-core-2.3.0.tgz",
-            "integrity": "sha512-SMbw2kFu09iBajicODSE4pn/K0tOibWyqct71TlzR8cYUBk+u7rkhqGY7US2iYz0HmP851IW7F7eXfXvz09yXA==",
+            "version": "3.0.0",
+            "resolved": "https://registry.npmjs.org/bitcoin-core/-/bitcoin-core-3.0.0.tgz",
+            "integrity": "sha512-fdh8V/5lxDXwbq6KUCd9PjbTDe1kPGFM1brSFByuzMb+VSArr1qF422qbAJvW0dLQSaRhVDb7WC+a602QM70FQ==",
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                 "@uphold/request-logger": "^2.0.0",
-                "bluebird": "^3.4.1",
                 "debugnyan": "^1.0.0",
                 "json-bigint": "^0.2.0",
                 "lodash": "^4.0.0",
@@ -1036,12 +1035,12 @@
             "dev": true
         },
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-            "version": "1.8.12",
-            "resolved": "https://registry.npmjs.org/bunyan/-/bunyan-1.8.12.tgz",
-            "integrity": "sha1-8VDw9nSKvdcq6uhPBEA74u8RN5c=",
+            "version": "1.8.15",
+            "resolved": "https://registry.npmjs.org/bunyan/-/bunyan-1.8.15.tgz",
+            "integrity": "sha512-0tECWShh6wUysgucJcBAoYegf3JJoZWibxdqhTm7OHPeT42qdjkZ29QCMcKwbgU1kiH+auSIasNRXMLWXafXig==",
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                 "dtrace-provider": "~0.8",
-                "moment": "^2.10.6",
+                "moment": "^2.19.3",
                 "mv": "~2",
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@@ -1677,7 +1676,7 @@
         "debugnyan": {
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             "resolved": "https://registry.npmjs.org/debugnyan/-/debugnyan-1.0.0.tgz",
-            "integrity": "sha1-kDhtXrwsY1iPF/Jyvlwqk7dmXYM=",
+            "integrity": "sha512-dTvKxcLZCammDLFYi31NRVr5g6vjJ33uf1wcdbIPPxPxxnJ9/xj00Mh/YQkhFMw/VGavaG5KpjSC+4o9r/JjRg==",
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                 "bunyan": "^1.8.1",
                 "debug": "^2.2.0"
@@ -3464,7 +3463,7 @@
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             "resolved": "https://registry.npmjs.org/glob/-/glob-6.0.4.tgz",
-            "integrity": "sha1-DwiGD2oVUSey+t1PnOJLGqtuTSI=",
+            "integrity": "sha512-MKZeRNyYZAVVVG1oZeLaWie1uweH40m9AZwIwxyPbTSX4hHrVYSzLg0Ro5Z5R7XKkIX+Cc6oD1rqeDJnwsB8/A==",
             "optional": true,
             "requires": {
                 "inflight": "^1.0.4",
@@ -4610,7 +4609,7 @@
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             "resolved": "https://registry.npmjs.org/json-bigint/-/json-bigint-0.2.3.tgz",
-            "integrity": "sha1-EY1/b/HThlnxn5TPc+ZKdaP5iKg=",
+            "integrity": "sha512-pG8elXWCTAIwH1W8FwjDbj2FBJSi2WE5PdV0dm+c+7LAmH6XL6fwDsdQGgAgOZljcF3Kj9Uzop2TfGfPDSOUqA==",
             "requires": {
                 "bignumber.js": "^4.0.0"
             },
@@ -5337,7 +5336,7 @@
         "mv": {
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             "resolved": "https://registry.npmjs.org/mv/-/mv-2.1.1.tgz",
-            "integrity": "sha1-rmzg1vbV4KT32JN5jQPB6pVZtqI=",
+            "integrity": "sha512-at/ZndSy3xEGJ8i0ygALh8ru9qy7gWW1cmkaqBN29JmMlIvM//MEO9y1sk/avxuwnPcfhkejkLsuPxH81BrkSg==",
             "optional": true,
             "requires": {
                 "mkdirp": "~0.5.1",
@@ -5377,7 +5376,7 @@
         "ncp": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/ncp/-/ncp-2.0.0.tgz",
-            "integrity": "sha1-GVoh1sRuNh0vsSgbo4uR6d9727M=",
+            "integrity": "sha512-zIdGUrPRFTUELUvr3Gmc7KZ2Sw/h1PiVM0Af/oHB6zgnV1ikqSfRk+TOufi79aHYCW3NiOXmr1BP5nWbzojLaA==",
             "optional": true
         },
         "negotiator": {
@@ -6588,7 +6587,7 @@
         "rimraf": {
             "version": "2.4.5",
             "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.4.5.tgz",
-            "integrity": "sha1-7nEM5dk6j9uFb7Xqj/Di11k0sto=",
+            "integrity": "sha512-J5xnxTyqaiw06JjMftq7L9ouA448dw/E7dKghkP9WpKNuwmARNNg+Gk8/u5ryb9N/Yo2+z3MCwuqFK/+qPOPfQ==",
             "optional": true,
             "requires": {
                 "glob": "^6.0.1"
@@ -7307,7 +7306,7 @@
         "standard-error": {
             "version": "1.1.0",
             "resolved": "https://registry.npmjs.org/standard-error/-/standard-error-1.1.0.tgz",
-            "integrity": "sha1-I+UWj6HAggGJ5YEnAaeQWFENDTQ="
+            "integrity": "sha512-4v7qzU7oLJfMI5EltUSHCaaOd65J6S4BqKRWgzMi4EYaE5fvNabPxmAPGdxpGXqrcWjhDGI/H09CIdEuUOUeXg=="
         },
         "static-extend": {
             "version": "0.1.2",
@@ -7610,9 +7609,9 @@
             }
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         "terser": {
-            "version": "4.6.7",
-            "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.7.tgz",
-            "integrity": "sha512-fmr7M1f7DBly5cX2+rFDvmGBAaaZyPrHYK4mMdHEDAdNTqXSZgSOfqsfGq2HqPGT/1V0foZZuCZFx8CHKgAk3g==",
+            "version": "4.8.1",
+            "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.1.tgz",
+            "integrity": "sha512-4GnLC0x667eJG0ewJTa6z/yXrbLGv80D9Ru6HIpCQmO+Q4PfEtBFi0ObSckqwL6VyQv/7ENJieXHo2ANmdQwgw==",
             "dev": true,
             "requires": {
                 "commander": "^2.20.0",