diff --git a/package-lock.json b/package-lock.json
index ca137db..4fb1149 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5004,9 +5004,9 @@
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-      "resolved": "https://registry.npmjs.org/globule/-/globule-1.2.1.tgz",
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+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/globule/-/globule-1.3.2.tgz",
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@@ -5200,9 +5200,9 @@
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-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.7.1.tgz",
-      "integrity": "sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==",
+      "version": "2.8.8",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.8.tgz",
+      "integrity": "sha512-f/wzC2QaWBs7t9IYqB4T3sR1xviIViXJRJTWBlx2Gf3g0Xi5vI7Yy4koXQ1c9OYDGHN9sBy1DQ2AB8fqZBWhUg==",
       "dev": true
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@@ -5447,9 +5447,9 @@
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-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/in-publish/-/in-publish-2.0.0.tgz",
-      "integrity": "sha1-4g/146KvwmkDILbcVSaCqcf631E=",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/in-publish/-/in-publish-2.0.1.tgz",
+      "integrity": "sha512-oDM0kUSNFC31ShNxHKUyfZKy8ZeXZBWMjMdZHKLOk13uvT27VTL/QzRGfRUcevJhpkZAvlhPYuXkF7eNWrtyxQ==",
       "dev": true
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@@ -5681,13 +5681,10 @@
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-      "resolved": "https://registry.npmjs.org/is-finite/-/is-finite-1.0.2.tgz",
-      "integrity": "sha1-zGZ3aVYCvlUO8R6LSqYwU0K20Ko=",
-      "dev": true,
-      "requires": {
-        "number-is-nan": "^1.0.0"
-      }
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-finite/-/is-finite-1.1.0.tgz",
+      "integrity": "sha512-cdyMtqX/BOqqNBBiKlIVkytNHm49MtMlYyn1zxzvJKWmFMlGzm+ry5BBfYyeY9YmNKbRSo/o7OX9w9ale0wg3w==",
+      "dev": true
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@@ -5869,9 +5866,9 @@
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-      "resolved": "https://registry.npmjs.org/js-base64/-/js-base64-2.5.1.tgz",
-      "integrity": "sha512-M7kLczedRMYX4L8Mdh4MzyAMM9O5osx+4FcOQuTvr3A9F2D9S5JXheN0ewNbrvK2UatkTRhL5ejGmGSjNMiZuw==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/js-base64/-/js-base64-2.6.4.tgz",
+      "integrity": "sha512-pZe//GGmwJndub7ZghVHz7vjb2LgC1m8B07Au3eYqeqv9emhESByMXxaEgkUkEqJe87oBbSniGYoQNIBklc7IQ==",
       "dev": true
     },
     "js-levenshtein": {
@@ -6610,6 +6607,11 @@
         }
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+    "moment": {
+      "version": "2.27.0",
+      "resolved": "https://registry.npmjs.org/moment/-/moment-2.27.0.tgz",
+      "integrity": "sha512-al0MUK7cpIcglMv3YF13qSgdAIqxHTO7brRtaz3DlSULbqfazqkc5kEjNrLDOM7fsjshoFIihnU8snrP7zUvhQ=="
+    },
     "move-concurrently": {
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       "resolved": "https://registry.npmjs.org/move-concurrently/-/move-concurrently-1.0.1.tgz",
@@ -6790,9 +6792,9 @@
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-      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.12.0.tgz",
-      "integrity": "sha512-A1Iv4oN+Iel6EPv77/HddXErL2a+gZ4uBeZUy+a8O35CFYTXhgA8MgLCWBtwpGZdCvTvQ9d+bQxX/QC36GDPpQ==",
+      "version": "4.13.1",
+      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.13.1.tgz",
+      "integrity": "sha512-TTWFx+ZhyDx1Biiez2nB0L3YrCZ/8oHagaDalbuBSlqXgUPsdkUSzJsVxeDO9LtPB49+Fh3WQl3slABo6AotNw==",
       "dev": true,
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@@ -6802,7 +6804,7 @@
         "get-stdin": "^4.0.1",
         "glob": "^7.0.3",
         "in-publish": "^2.0.0",
-        "lodash": "^4.17.11",
+        "lodash": "^4.17.15",
         "meow": "^3.7.0",
         "mkdirp": "^0.5.1",
         "nan": "^2.13.2",
@@ -6843,6 +6845,12 @@
             "which": "^1.2.9"
           }
         },
+        "lodash": {
+          "version": "4.17.20",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
+          "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
+          "dev": true
+        },
         "lru-cache": {
           "version": "4.1.5",
           "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.5.tgz",
@@ -8821,9 +8829,9 @@
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-      "version": "2.2.4",
-      "resolved": "https://registry.npmjs.org/sass-graph/-/sass-graph-2.2.4.tgz",
-      "integrity": "sha1-E/vWPNHK8JCLn9k0dq1DpR0eC0k=",
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/sass-graph/-/sass-graph-2.2.6.tgz",
+      "integrity": "sha512-MKuEYXFSGuRSi8FZ3A7imN1CeVn9Gpw0/SFJKdL1ejXJneI9a5rwlEZrKejhEFAA3O6yr3eIyl/WuvASvlT36g==",
       "dev": true,
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@@ -8906,9 +8914,9 @@
           "dev": true
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         "yargs": {
-          "version": "7.1.0",
-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.0.tgz",
-          "integrity": "sha1-a6MY6xaWFyf10oT46gA+jWFU0Mg=",
+          "version": "7.1.1",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-7.1.1.tgz",
+          "integrity": "sha512-huO4Fr1f9PmiJJdll5kwoS2e4GqzGSsMT3PPMpOwoVkOK8ckqAewMTZyA6LXVQWflleb/Z8oPBEvNsMft0XE+g==",
           "dev": true,
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@@ -8923,16 +8931,17 @@
             "string-width": "^1.0.2",
             "which-module": "^1.0.0",
             "y18n": "^3.2.1",
-            "yargs-parser": "^5.0.0"
+            "yargs-parser": "5.0.0-security.0"
           }
         },
         "yargs-parser": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0.tgz",
-          "integrity": "sha1-J17PDX/+Bcd+ZOfIbkzZS/DhIoo=",
+          "version": "5.0.0-security.0",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0-security.0.tgz",
+          "integrity": "sha512-T69y4Ps64LNesYxeYGYPvfoMTt/7y1XtfpIslUeK4um+9Hu7hlGoRtaDLvdXb7+/tfq4opVa2HRY5xGip022rQ==",
           "dev": true,
           "requires": {
-            "camelcase": "^3.0.0"
+            "camelcase": "^3.0.0",
+            "object.assign": "^4.1.0"
           }
         }
       }
@@ -9505,9 +9514,9 @@
       "dev": true
     },
     "spdx-correct": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
-      "integrity": "sha512-lr2EZCctC2BNR7j7WzJ2FpDznxky1sjfxvvYEyzxNyb6lZXHODmEoJeFu4JupYlkfha1KZpJyoqiJ7pgA1qq8Q==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.1.tgz",
+      "integrity": "sha512-cOYcUWwhCuHCXi49RhFRCyJEK3iPj1Ziz9DpViV3tbZOwXD49QzIN3MpOLJNxh2qwq2lJJZaKMVw9qNi4jTC0w==",
       "dev": true,
       "requires": {
         "spdx-expression-parse": "^3.0.0",
@@ -9515,15 +9524,15 @@
       }
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-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz",
-      "integrity": "sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.3.0.tgz",
+      "integrity": "sha512-/tTrYOC7PPI1nUAgx34hUpqXuyJG+DTHJTnIULG4rDygi4xu/tfgmq1e1cIRwRzwZgo4NLySi+ricLkZkw4i5A==",
       "dev": true
     },
     "spdx-expression-parse": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/spdx-expression-parse/-/spdx-expression-parse-3.0.0.tgz",
-      "integrity": "sha512-Yg6D3XpRD4kkOmTpdgbUiEJFKghJH03fiC1OPll5h/0sO6neh2jqRDVHOQ4o/LMea0tgCkbMgea5ip/e+MkWyg==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/spdx-expression-parse/-/spdx-expression-parse-3.0.1.tgz",
+      "integrity": "sha512-cbqHunsQWnJNE6KhVSMsMeH5H/L9EpymbzqTQ3uLwNCLZ1Q481oWaofqH7nO6V07xlXwY6PhQdQ2IedWx/ZK4Q==",
       "dev": true,
       "requires": {
         "spdx-exceptions": "^2.1.0",
@@ -9531,9 +9540,9 @@
       }
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     "spdx-license-ids": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.4.tgz",
-      "integrity": "sha512-7j8LYJLeY/Yb6ACbQ7F76qy5jHkp0U6jgBfJsk97bwWlVUnUWsAgpyaCvo17h0/RQGnQ036tVDomiwoI4pDkQA==",
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.5.tgz",
+      "integrity": "sha512-J+FWzZoynJEXGphVIS+XEh3kFSjZX/1i9gFBaWQcB+/tmpe2qUsSBABpcxqxnAxFdiUFEgAX1bjYGQvIZmoz9Q==",
       "dev": true
     },
     "spdy": {
diff --git a/package.json b/package.json
index 1496a89..067ec5a 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
     "build": "vuepress build"
   },
   "devDependencies": {
-    "node-sass": "^4.12.0",
+    "node-sass": "^4.13.1",
     "pug": "^2.0.3",
     "pug-plain-loader": "^1.0.0",
     "sass-loader": "^7.1.0",
diff --git a/yarn.lock b/yarn.lock
index 3ba534f..b3cb77b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4428,9 +4428,9 @@ node-releases@^1.1.29:
   dependencies:
     semver "^5.3.0"
 
-node-sass@^4.12.0:
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.12.0.tgz#0914f531932380114a30cc5fa4fa63233a25f017"
+node-sass@^4.13.1:
+  version "4.13.1"
+  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.13.1.tgz#9db5689696bb2eec2c32b98bfea4c7a2e992d0a3"
   dependencies:
     async-foreach "^0.1.3"
     chalk "^1.1.1"
@@ -4439,7 +4439,7 @@ node-sass@^4.12.0:
     get-stdin "^4.0.1"
     glob "^7.0.3"
     in-publish "^2.0.0"
-    lodash "^4.17.11"
+    lodash "^4.17.15"
     meow "^3.7.0"
     mkdirp "^0.5.1"
     nan "^2.13.2"