diff --git a/packages/remark-leanpub/package-lock.json b/packages/remark-leanpub/package-lock.json
index d4d0103..bf298db 100644
--- a/packages/remark-leanpub/package-lock.json
+++ b/packages/remark-leanpub/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@fullstackio/remark-leanpub",
-  "version": "6.0.0",
+  "version": "7.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -82,7 +82,7 @@
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
-          "resolved": "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
           "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
           "dev": true
         }
@@ -232,7 +232,7 @@
         },
         "util": {
           "version": "0.10.3",
-          "resolved": "http://registry.npmjs.org/util/-/util-0.10.3.tgz",
+          "resolved": "https://registry.npmjs.org/util/-/util-0.10.3.tgz",
           "integrity": "sha1-evsa/lCAUkZInj23/g7TeTNqwPk=",
           "dev": true,
           "requires": {
@@ -255,7 +255,7 @@
     },
     "async": {
       "version": "1.5.2",
-      "resolved": "http://registry.npmjs.org/async/-/async-1.5.2.tgz",
+      "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
       "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
       "dev": true
     },
@@ -315,13 +315,13 @@
       "dependencies": {
         "globals": {
           "version": "6.4.1",
-          "resolved": "http://registry.npmjs.org/globals/-/globals-6.4.1.tgz",
+          "resolved": "https://registry.npmjs.org/globals/-/globals-6.4.1.tgz",
           "integrity": "sha1-hJgDKzttHMge68X3lpDY/in6v08=",
           "dev": true
         },
         "lodash": {
           "version": "3.10.1",
-          "resolved": "http://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
           "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=",
           "dev": true
         },
@@ -399,7 +399,7 @@
       "dependencies": {
         "lodash": {
           "version": "3.10.1",
-          "resolved": "http://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
           "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=",
           "dev": true
         }
@@ -533,7 +533,7 @@
       "dependencies": {
         "resolve": {
           "version": "1.1.7",
-          "resolved": "http://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
+          "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
           "integrity": "sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=",
           "dev": true
         }
@@ -1255,7 +1255,7 @@
       "dependencies": {
         "domelementtype": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-1.1.3.tgz",
           "integrity": "sha1-vSh3PiZCiBrsUVRJJCmcXNgiGFs=",
           "dev": true
         },
@@ -1308,9 +1308,9 @@
       }
     },
     "elliptic": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.1.tgz",
-      "integrity": "sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+      "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
       "dev": true,
       "requires": {
         "bn.js": "^4.4.0",
@@ -1324,7 +1324,7 @@
     },
     "entities": {
       "version": "1.0.0",
-      "resolved": "http://registry.npmjs.org/entities/-/entities-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-1.0.0.tgz",
       "integrity": "sha1-sph6o4ITR/zeZCsk/fyeT7cSvyY=",
       "dev": true
     },
@@ -1461,7 +1461,7 @@
         },
         "source-map": {
           "version": "0.1.43",
-          "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
           "integrity": "sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=",
           "dev": true,
           "optional": true,
@@ -1618,7 +1618,7 @@
         },
         "source-map": {
           "version": "0.1.43",
-          "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
           "integrity": "sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=",
           "dev": true,
           "requires": {
@@ -2452,13 +2452,13 @@
         },
         "resolve": {
           "version": "1.1.7",
-          "resolved": "http://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
+          "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
           "integrity": "sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=",
           "dev": true
         },
         "source-map": {
           "version": "0.2.0",
-          "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.2.0.tgz",
           "integrity": "sha1-2rc/vPwrqBm03gO9b26qSBZLP50=",
           "dev": true,
           "optional": true,
@@ -2531,7 +2531,7 @@
       "dependencies": {
         "commander": {
           "version": "2.9.0",
-          "resolved": "http://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
           "integrity": "sha1-nJkJQXbhIkDLItbFFGCYQA/g99Q=",
           "dev": true,
           "requires": {
@@ -2570,7 +2570,7 @@
         },
         "lodash": {
           "version": "3.10.1",
-          "resolved": "http://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
           "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=",
           "dev": true
         }
@@ -2603,7 +2603,7 @@
       "dependencies": {
         "lodash": {
           "version": "3.10.1",
-          "resolved": "http://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
           "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=",
           "dev": true
         }
@@ -3051,7 +3051,7 @@
         },
         "strip-ansi": {
           "version": "0.1.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-0.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-0.1.1.tgz",
           "integrity": "sha1-OeipjQRNFQZgq+SmgIrPcLt7yZE=",
           "dev": true
         }
@@ -3495,7 +3495,7 @@
     },
     "recast": {
       "version": "0.10.33",
-      "resolved": "http://registry.npmjs.org/recast/-/recast-0.10.33.tgz",
+      "resolved": "https://registry.npmjs.org/recast/-/recast-0.10.33.tgz",
       "integrity": "sha1-lCgI96oBbx+nFCxGHX5XBKqo1pc=",
       "dev": true,
       "requires": {
@@ -3507,7 +3507,7 @@
       "dependencies": {
         "ast-types": {
           "version": "0.8.12",
-          "resolved": "http://registry.npmjs.org/ast-types/-/ast-types-0.8.12.tgz",
+          "resolved": "https://registry.npmjs.org/ast-types/-/ast-types-0.8.12.tgz",
           "integrity": "sha1-oNkOQ1G7iHcWyD/WN+v4GK9K38w=",
           "dev": true
         },
@@ -3606,7 +3606,7 @@
       "dependencies": {
         "remark-parse": {
           "version": "1.1.0",
-          "resolved": "http://registry.npmjs.org/remark-parse/-/remark-parse-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/remark-parse/-/remark-parse-1.1.0.tgz",
           "integrity": "sha1-w8oQ+ajaBGFcKPCapOMEUQUm7CE=",
           "dev": true,
           "requires": {
@@ -3623,7 +3623,7 @@
         },
         "remark-stringify": {
           "version": "1.1.0",
-          "resolved": "http://registry.npmjs.org/remark-stringify/-/remark-stringify-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/remark-stringify/-/remark-stringify-1.1.0.tgz",
           "integrity": "sha1-pxBeJbnuK/mkm3XSxCPxGwauIJI=",
           "dev": true,
           "requires": {
@@ -3639,7 +3639,7 @@
         },
         "unified": {
           "version": "4.2.1",
-          "resolved": "http://registry.npmjs.org/unified/-/unified-4.2.1.tgz",
+          "resolved": "https://registry.npmjs.org/unified/-/unified-4.2.1.tgz",
           "integrity": "sha1-dv9Dqo2kMPbn5KVchOusKtLPzS4=",
           "dev": true,
           "requires": {
@@ -3986,7 +3986,7 @@
       "dependencies": {
         "source-map": {
           "version": "0.1.32",
-          "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.1.32.tgz",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.32.tgz",
           "integrity": "sha1-yLbBZ3l7pHQKjqMyUhYv8IWRsmY=",
           "dev": true,
           "requires": {
@@ -4072,7 +4072,7 @@
     },
     "string-width": {
       "version": "1.0.2",
-      "resolved": "http://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
       "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
       "dev": true,
       "requires": {
@@ -4124,7 +4124,7 @@
     },
     "strip-ansi": {
       "version": "3.0.1",
-      "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
       "dev": true,
       "requires": {
@@ -4157,7 +4157,7 @@
     },
     "supports-color": {
       "version": "2.0.0",
-      "resolved": "http://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
       "dev": true
     },
@@ -4240,7 +4240,7 @@
       "dependencies": {
         "resolve": {
           "version": "1.7.1",
-          "resolved": "http://registry.npmjs.org/resolve/-/resolve-1.7.1.tgz",
+          "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.7.1.tgz",
           "integrity": "sha512-c7rwLofp8g1U+h1KNyHL/jicrKg1Ek4q+Lr33AL65uZTinUZHe30D5HlyN5V9NW0JX1D5dXQ4jqW5l7Sy/kGfw==",
           "dev": true,
           "requires": {
@@ -4577,7 +4577,7 @@
       "dependencies": {
         "async": {
           "version": "0.2.10",
-          "resolved": "http://registry.npmjs.org/async/-/async-0.2.10.tgz",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
           "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E=",
           "dev": true
         }
@@ -4591,7 +4591,7 @@
     },
     "vfile": {
       "version": "1.4.0",
-      "resolved": "http://registry.npmjs.org/vfile/-/vfile-1.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/vfile/-/vfile-1.4.0.tgz",
       "integrity": "sha1-wP1vpIT43r23cfaMMe112I2pf+c=",
       "dev": true
     },
@@ -4683,7 +4683,7 @@
       "dependencies": {
         "async": {
           "version": "0.2.10",
-          "resolved": "http://registry.npmjs.org/async/-/async-0.2.10.tgz",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
           "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E=",
           "dev": true
         },
@@ -4739,7 +4739,7 @@
       "dependencies": {
         "lodash": {
           "version": "3.10.1",
-          "resolved": "http://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
           "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=",
           "dev": true
         }
diff --git a/packages/remark-leanpub/yarn.lock b/packages/remark-leanpub/yarn.lock
index cdebcca..1aa6fe5 100644
--- a/packages/remark-leanpub/yarn.lock
+++ b/packages/remark-leanpub/yarn.lock
@@ -393,9 +393,9 @@ bluebird@^2.9.33:
   integrity sha1-U0uQM8AiyVecVro7Plpcqvu2UOE=
 
 bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
-  integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
+  version "4.11.9"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.9.tgz#26d556829458f9d1e81fc48952493d0ba3507828"
+  integrity sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw==
 
 brace-expansion@^1.0.0, brace-expansion@^1.1.7:
   version "1.1.11"
@@ -1050,9 +1050,9 @@ duplexer2@^0.1.2, duplexer2@~0.1.0, duplexer2@~0.1.2:
     readable-stream "^2.0.2"
 
 elliptic@^6.0.0:
-  version "6.4.1"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.1.tgz#c2d0b7776911b86722c632c3c06c60f2f819939a"
-  integrity sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==
+  version "6.5.3"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.3.tgz#cb59eb2efdaf73a0bd78ccd7015a62ad6e0f93d6"
+  integrity sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==
   dependencies:
     bn.js "^4.4.0"
     brorand "^1.0.1"
@@ -1669,16 +1669,21 @@ inherit@^2.2.2:
   resolved "https://registry.yarnpkg.com/inherit/-/inherit-2.2.7.tgz#4e238e289bc7adddf8ff5053d0f26a2fcda94b9f"
   integrity sha512-dxJmC1j0Q32NFAjvbd6g3lXYLZ49HgzotgbSMwMkoiTXGhC9412Oc24g7A7M9cPPkw/vDsF2cSII+2zJwocUtQ==
 
-inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, inherits@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
-  integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
+inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, inherits@~2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
 
 inherits@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
   integrity sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=
 
+inherits@2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+  integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
+
 ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"