diff --git a/package-lock.json b/package-lock.json
index 095e0df..b9acac8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -356,14 +356,21 @@
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         },
         "ajv": {
-            "version": "6.10.2",
-            "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
-            "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+            "version": "6.12.6",
+            "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+            "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
             "requires": {
-                "fast-deep-equal": "^2.0.1",
+                "fast-deep-equal": "^3.1.1",
                 "fast-json-stable-stringify": "^2.0.0",
                 "json-schema-traverse": "^0.4.1",
                 "uri-js": "^4.2.2"
+            },
+            "dependencies": {
+                "fast-deep-equal": {
+                    "version": "3.1.3",
+                    "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+                    "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="
+                }
             }
         },
         "ajv-errors": {
@@ -725,12 +732,11 @@
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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",
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                 "json-bigint": "^0.2.0",
                 "lodash": "^4.0.0",
@@ -1036,12 +1042,12 @@
             "dev": true
         },
         "bunyan": {
-            "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",
                 "safe-json-stringify": "~1"
             }
@@ -2589,11 +2595,6 @@
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             "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
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-        "fast-deep-equal": {
-            "version": "2.0.1",
-            "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
-            "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
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         "fast-json-stable-stringify": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",