diff --git a/package-lock.json b/package-lock.json
index 9de2ff5..3b11623 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,138 @@
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@@ -363,6 +497,12 @@
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@@ -461,6 +622,18 @@
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-              "bundled": true,
-              "dev": true,
-              "requires": {
-                "arr-diff": "^4.0.0",
-                "array-unique": "^0.3.2",
-                "braces": "^2.3.1",
-                "define-property": "^2.0.2",
-                "extend-shallow": "^3.0.2",
-                "extglob": "^2.0.4",
-                "fragment-cache": "^0.2.1",
-                "kind-of": "^6.0.2",
-                "nanomatch": "^1.2.9",
-                "object.pick": "^1.3.0",
-                "regex-not": "^1.0.0",
-                "snapdragon": "^0.8.1",
-                "to-regex": "^3.0.2"
-              }
-            }
+            "shebang-regex": "^1.0.0"
           }
         },
-        "to-fast-properties": {
-          "version": "1.0.3",
+        "shebang-regex": {
+          "version": "1.0.0",
+          "bundled": true,
+          "dev": true
+        },
+        "signal-exit": {
+          "version": "3.0.2",
           "bundled": true,
           "dev": true
         },
-        "to-object-path": {
-          "version": "0.3.0",
+        "spawn-wrap": {
+          "version": "1.4.2",
           "bundled": true,
           "dev": true,
           "requires": {
-            "kind-of": "^3.0.2"
+            "foreground-child": "^1.5.6",
+            "mkdirp": "^0.5.0",
+            "os-homedir": "^1.0.1",
+            "rimraf": "^2.6.2",
+            "signal-exit": "^3.0.2",
+            "which": "^1.3.0"
           }
         },
-        "to-regex": {
-          "version": "3.0.2",
+        "spdx-correct": {
+          "version": "3.1.0",
           "bundled": true,
           "dev": true,
           "requires": {
-            "define-property": "^2.0.2",
-            "extend-shallow": "^3.0.2",
-            "regex-not": "^1.0.2",
-            "safe-regex": "^1.1.0"
+            "spdx-expression-parse": "^3.0.0",
+            "spdx-license-ids": "^3.0.0"
           }
         },
-        "to-regex-range": {
-          "version": "2.1.1",
+        "spdx-exceptions": {
+          "version": "2.2.0",
+          "bundled": true,
+          "dev": true
+        },
+        "spdx-expression-parse": {
+          "version": "3.0.0",
           "bundled": true,
           "dev": true,
           "requires": {
-            "is-number": "^3.0.0",
-            "repeat-string": "^1.6.1"
-          },
-          "dependencies": {
-            "is-number": {
-              "version": "3.0.0",
-              "bundled": true,
-              "dev": true,
-              "requires": {
-                "kind-of": "^3.0.2"
-              }
-            }
+            "spdx-exceptions": "^2.1.0",
+            "spdx-license-ids": "^3.0.0"
           }
         },
-        "trim-right": {
-          "version": "1.0.1",
+        "spdx-license-ids": {
+          "version": "3.0.3",
           "bundled": true,
           "dev": true
         },
-        "uglify-js": {
-          "version": "2.8.29",
+        "string-width": {
+          "version": "2.1.1",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
-            "source-map": "~0.5.1",
-            "uglify-to-browserify": "~1.0.0",
-            "yargs": "~3.10.0"
-          },
-          "dependencies": {
-            "yargs": {
-              "version": "3.10.0",
-              "bundled": true,
-              "dev": true,
-              "optional": true,
-              "requires": {
-                "camelcase": "^1.0.2",
-                "cliui": "^2.1.0",
-                "decamelize": "^1.0.0",
-                "window-size": "0.1.0"
-              }
-            }
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^4.0.0"
           }
         },
-        "uglify-to-browserify": {
-          "version": "1.0.2",
+        "strip-ansi": {
+          "version": "4.0.0",
           "bundled": true,
           "dev": true,
-          "optional": true
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        },
+        "strip-bom": {
+          "version": "3.0.0",
+          "bundled": true,
+          "dev": true
         },
-        "union-value": {
+        "strip-eof": {
           "version": "1.0.0",
           "bundled": true,
+          "dev": true
+        },
+        "test-exclude": {
+          "version": "5.1.0",
+          "bundled": true,
           "dev": true,
           "requires": {
-            "arr-union": "^3.1.0",
-            "get-value": "^2.0.6",
-            "is-extendable": "^0.1.1",
-            "set-value": "^0.4.3"
-          },
-          "dependencies": {
-            "extend-shallow": {
-              "version": "2.0.1",
-              "bundled": true,
-              "dev": true,
-              "requires": {
-                "is-extendable": "^0.1.0"
-              }
-            },
-            "set-value": {
-              "version": "0.4.3",
-              "bundled": true,
-              "dev": true,
-              "requires": {
-                "extend-shallow": "^2.0.1",
-                "is-extendable": "^0.1.1",
-                "is-plain-object": "^2.0.1",
-                "to-object-path": "^0.3.0"
-              }
-            }
+            "arrify": "^1.0.1",
+            "minimatch": "^3.0.4",
+            "read-pkg-up": "^4.0.0",
+            "require-main-filename": "^1.0.1"
           }
         },
-        "unset-value": {
-          "version": "1.0.0",
+        "uglify-js": {
+          "version": "3.4.9",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
-            "has-value": "^0.3.1",
-            "isobject": "^3.0.0"
+            "commander": "~2.17.1",
+            "source-map": "~0.6.1"
           },
           "dependencies": {
-            "has-value": {
-              "version": "0.3.1",
+            "source-map": {
+              "version": "0.6.1",
               "bundled": true,
               "dev": true,
-              "requires": {
-                "get-value": "^2.0.3",
-                "has-values": "^0.1.4",
-                "isobject": "^2.0.0"
-              },
-              "dependencies": {
-                "isobject": {
-                  "version": "2.1.0",
-                  "bundled": true,
-                  "dev": true,
-                  "requires": {
-                    "isarray": "1.0.0"
-                  }
-                }
-              }
-            },
-            "has-values": {
-              "version": "0.1.4",
-              "bundled": true,
-              "dev": true
-            },
-            "isobject": {
-              "version": "3.0.1",
-              "bundled": true,
-              "dev": true
+              "optional": true
             }
           }
         },
-        "urix": {
-          "version": "0.1.0",
+        "uuid": {
+          "version": "3.3.2",
           "bundled": true,
           "dev": true
         },
-        "use": {
-          "version": "3.1.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "kind-of": "^6.0.2"
-          },
-          "dependencies": {
-            "kind-of": {
-              "version": "6.0.2",
-              "bundled": true,
-              "dev": true
-            }
-          }
-        },
         "validate-npm-package-license": {
-          "version": "3.0.3",
+          "version": "3.0.4",
           "bundled": true,
           "dev": true,
           "requires": {
@@ -3043,7 +1655,7 @@
           }
         },
         "which": {
-          "version": "1.3.0",
+          "version": "1.3.1",
           "bundled": true,
           "dev": true,
           "requires": {
@@ -3055,12 +1667,6 @@
           "bundled": true,
           "dev": true
         },
-        "window-size": {
-          "version": "0.1.0",
-          "bundled": true,
-          "dev": true,
-          "optional": true
-        },
         "wordwrap": {
           "version": "0.0.3",
           "bundled": true,
@@ -3075,6 +1681,11 @@
             "strip-ansi": "^3.0.1"
           },
           "dependencies": {
+            "ansi-regex": {
+              "version": "2.1.1",
+              "bundled": true,
+              "dev": true
+            },
             "is-fullwidth-code-point": {
               "version": "1.0.0",
               "bundled": true,
@@ -3092,6 +1703,14 @@
                 "is-fullwidth-code-point": "^1.0.0",
                 "strip-ansi": "^3.0.0"
               }
+            },
+            "strip-ansi": {
+              "version": "3.0.1",
+              "bundled": true,
+              "dev": true,
+              "requires": {
+                "ansi-regex": "^2.0.0"
+              }
             }
           }
         },
@@ -3101,17 +1720,17 @@
           "dev": true
         },
         "write-file-atomic": {
-          "version": "1.3.4",
+          "version": "2.4.2",
           "bundled": true,
           "dev": true,
           "requires": {
             "graceful-fs": "^4.1.11",
             "imurmurhash": "^0.1.4",
-            "slide": "^1.1.5"
+            "signal-exit": "^3.0.2"
           }
         },
         "y18n": {
-          "version": "3.2.1",
+          "version": "4.0.0",
           "bundled": true,
           "dev": true
         },
@@ -3121,75 +1740,31 @@
           "dev": true
         },
         "yargs": {
-          "version": "11.1.0",
+          "version": "12.0.5",
           "bundled": true,
           "dev": true,
           "requires": {
             "cliui": "^4.0.0",
-            "decamelize": "^1.1.1",
-            "find-up": "^2.1.0",
+            "decamelize": "^1.2.0",
+            "find-up": "^3.0.0",
             "get-caller-file": "^1.0.1",
-            "os-locale": "^2.0.0",
+            "os-locale": "^3.0.0",
             "require-directory": "^2.1.1",
             "require-main-filename": "^1.0.1",
             "set-blocking": "^2.0.0",
             "string-width": "^2.0.0",
             "which-module": "^2.0.0",
-            "y18n": "^3.2.1",
-            "yargs-parser": "^9.0.2"
-          },
-          "dependencies": {
-            "ansi-regex": {
-              "version": "3.0.0",
-              "bundled": true,
-              "dev": true
-            },
-            "camelcase": {
-              "version": "4.1.0",
-              "bundled": true,
-              "dev": true
-            },
-            "cliui": {
-              "version": "4.1.0",
-              "bundled": true,
-              "dev": true,
-              "requires": {
-                "string-width": "^2.1.1",
-                "strip-ansi": "^4.0.0",
-                "wrap-ansi": "^2.0.0"
-              }
-            },
-            "strip-ansi": {
-              "version": "4.0.0",
-              "bundled": true,
-              "dev": true,
-              "requires": {
-                "ansi-regex": "^3.0.0"
-              }
-            },
-            "yargs-parser": {
-              "version": "9.0.2",
-              "bundled": true,
-              "dev": true,
-              "requires": {
-                "camelcase": "^4.1.0"
-              }
-            }
+            "y18n": "^3.2.1 || ^4.0.0",
+            "yargs-parser": "^11.1.1"
           }
         },
         "yargs-parser": {
-          "version": "8.1.0",
+          "version": "11.1.1",
           "bundled": true,
           "dev": true,
           "requires": {
-            "camelcase": "^4.1.0"
-          },
-          "dependencies": {
-            "camelcase": {
-              "version": "4.1.0",
-              "bundled": true,
-              "dev": true
-            }
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
           }
         }
       }
@@ -3299,6 +1874,12 @@
         "safe-buffer": "^5.0.1"
       }
     },
+    "source-map": {
+      "version": "0.5.7",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+      "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+      "dev": true
+    },
     "sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -3341,6 +1922,18 @@
         "nan": "^2.10.0"
       }
     },
+    "to-fast-properties": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+      "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+      "dev": true
+    },
+    "trim-right": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
+      "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=",
+      "dev": true
+    },
     "tslib": {
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.9.3.tgz",
diff --git a/package.json b/package.json
index e62819a..4ec4077 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
   "dependencies": {
     "@types/node": "10.12.18",
     "bech32": "^1.1.2",
-    "bip32": "git+https://github.com/junderw/bip32.git#typeScript",
+    "bip32": "^2.0.0",
     "bip66": "^1.1.0",
     "bitcoin-ops": "^1.4.0",
     "bs58check": "^2.0.0",
@@ -67,7 +67,7 @@
     "hoodwink": "^2.0.0",
     "minimaldata": "^1.0.2",
     "mocha": "^5.2.0",
-    "nyc": "^11.8.0",
+    "nyc": "^13.3.0",
     "prettier": "1.16.4",
     "proxyquire": "^2.0.1",
     "tslint": "5.13.1",