diff --git a/package-lock.json b/package-lock.json
index 2236509..30b3c8b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
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-        "puppeteer": "^1.3.0",
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@@ -209,9 +209,9 @@
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+      "version": "1.0.1",
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-        "progress": "2.0.0",
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-        "rimraf": "2.6.2",
-        "ws": "3.3.3"
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+        "mime": "^2.0.3",
+        "progress": "^2.0.1",
+        "proxy-from-env": "^1.0.0",
+        "rimraf": "^2.6.1",
+        "ws": "^6.1.0"
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+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
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+      "dependencies": {
+        "ms": "2.1.2"
+      },
+      "engines": {
+        "node": ">=6.0"
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+      "peerDependenciesMeta": {
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+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
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@@ -2754,13 +2769,11 @@
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+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
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       "dependencies": {
-        "async-limiter": "1.0.0",
-        "safe-buffer": "5.1.2",
-        "ultron": "1.1.1"
+        "async-limiter": "~1.0.0"
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@@ -2783,7 +2796,7 @@
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-      "resolved": "http://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz",
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@@ -2970,9 +2983,9 @@
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-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
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+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
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@@ -4004,9 +4017,9 @@
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-      "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
-      "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg=="
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-2.5.2.tgz",
+      "integrity": "sha512-tqkh47FzKeCPD2PUiPB6pkbMzsCasjxAfC62/Wap5qrUWcb+sFasXUC5I3gYM5iBM8v/Qpn4UK0x+j0iHyFPDg=="
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     "mimic-fn": {
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@@ -4256,9 +4269,9 @@
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-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.0.tgz",
-      "integrity": "sha1-ihvjZr+Pwj2yvSPxDG/pILQ4nR8="
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
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     "promise": {
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@@ -4393,18 +4406,33 @@
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-      "resolved": "https://registry.npmjs.org/puppeteer/-/puppeteer-1.3.0.tgz",
-      "integrity": "sha512-wx10aPQPpGJVxdB6yoDSLm9p4rCwARUSLMVV0bx++owuqkvviXKyiFM3EWsywaFmjOKNPXacIjplF7xhHiFP3w==",
+      "version": "1.13.0",
+      "resolved": "https://registry.npmjs.org/puppeteer/-/puppeteer-1.13.0.tgz",
+      "integrity": "sha512-LUXgvhjfB/P6IOUDAKxOcbCz9ISwBLL9UpKghYrcBDwrOGx1m60y0iN2M64mdAUbT4+7oZM5DTxOW7equa2fxQ==",
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-        "extract-zip": "1.6.6",
-        "https-proxy-agent": "2.2.1",
-        "mime": "1.6.0",
-        "progress": "2.0.0",
-        "proxy-from-env": "1.0.0",
-        "rimraf": "2.6.2",
-        "ws": "3.3.3"
+        "debug": "^4.1.0",
+        "extract-zip": "^1.6.6",
+        "https-proxy-agent": "^2.2.1",
+        "mime": "^2.0.3",
+        "progress": "^2.0.1",
+        "proxy-from-env": "^1.0.0",
+        "rimraf": "^2.6.1",
+        "ws": "^6.1.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.3.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
+          "integrity": "sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==",
+          "requires": {
+            "ms": "2.1.2"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+        }
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@@ -4861,11 +4889,6 @@
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-      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
-      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
-    },
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       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
@@ -5049,13 +5072,11 @@
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
-      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
+      "integrity": "sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==",
       "requires": {
-        "async-limiter": "1.0.0",
-        "safe-buffer": "5.1.2",
-        "ultron": "1.1.1"
+        "async-limiter": "~1.0.0"
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@@ -5075,7 +5096,7 @@
     },
     "yargs": {
       "version": "11.1.0",
-      "resolved": "http://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-11.1.0.tgz",
       "integrity": "sha512-NwW69J42EsCSanF8kyn5upxvjp5ds+t3+udGBeTbFnERA+lF541DDpMawzo4z6W/QrzNM18D+BPMiOBibnFV5A==",
       "requires": {
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diff --git a/package.json b/package.json
index ceed5fb..743c399 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "dependencies": {
     "asciidoctor.js": "^1.5.6",
     "asciidoctor.js-pug": "github:Mogztter/asciidoctor.js-pug#89c433e6282370a9ac8fe07426523a7d42aa4d83",
-    "puppeteer": "^1.3.0",
+    "puppeteer": "^1.13.0",
     "yargs": "^11.1.0"
   },
   "devDependencies": {