diff --git a/docs/package-lock.json b/docs/package-lock.json
index 18a572e..c87d3b5 100644
--- a/docs/package-lock.json
+++ b/docs/package-lock.json
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@@ -5339,14 +5430,12 @@
             "wrappy": {
               "version": "1.0.2",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
             },
             "yallist": {
               "version": "3.0.2",
               "bundled": true,
-              "dev": true,
-              "optional": true
+              "dev": true
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@@ -5490,9 +5579,9 @@
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-      "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
-      "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==",
+      "version": "0.8.2",
+      "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.8.2.tgz",
+      "integrity": "sha1-Rqarfwrq2N6unsBWV4C31O/rnUM=",
       "dev": true,
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@@ -5742,13 +5831,6 @@
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-      "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
-      "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=",
-      "dev": true,
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       "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
@@ -5841,17 +5923,10 @@
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-      "version": "1.1.29",
-      "resolved": "https://registry.npmjs.org/psl/-/psl-1.1.29.tgz",
-      "integrity": "sha512-AeUmQ0oLN02flVHXWh9sSJF7mcdFq0ppid/JkErufc3hGIV/AMa8Fo9VgDo/cT2jFdOWoFvHp90qqBH54W+gjQ==",
-      "dev": true,
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-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+      "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
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@@ -6029,68 +6104,6 @@
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       "dev": true
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-      "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz",
-      "integrity": "sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "aws-sign2": "~0.7.0",
-        "aws4": "^1.8.0",
-        "caseless": "~0.12.0",
-        "combined-stream": "~1.0.6",
-        "extend": "~3.0.2",
-        "forever-agent": "~0.6.1",
-        "form-data": "~2.3.2",
-        "har-validator": "~5.1.0",
-        "http-signature": "~1.2.0",
-        "is-typedarray": "~1.0.0",
-        "isstream": "~0.1.2",
-        "json-stringify-safe": "~5.0.1",
-        "mime-types": "~2.1.19",
-        "oauth-sign": "~0.9.0",
-        "performance-now": "^2.1.0",
-        "qs": "~6.5.2",
-        "safe-buffer": "^5.1.2",
-        "tough-cookie": "~2.4.3",
-        "tunnel-agent": "^0.6.0",
-        "uuid": "^3.3.2"
-      },
-      "dependencies": {
-        "mime-db": {
-          "version": "1.37.0",
-          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.37.0.tgz",
-          "integrity": "sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg==",
-          "dev": true,
-          "optional": true
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-        "mime-types": {
-          "version": "2.1.21",
-          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.21.tgz",
-          "integrity": "sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "mime-db": "~1.37.0"
-          }
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-        "qs": {
-          "version": "6.5.2",
-          "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-          "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==",
-          "dev": true,
-          "optional": true
-        },
-        "safe-buffer": {
-          "version": "5.1.2",
-          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-          "dev": true,
-          "optional": true
-        }
-      }
-    },
     "require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
@@ -6590,9 +6603,9 @@
       "dev": true
     },
     "sshpk": {
-      "version": "1.15.2",
-      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.15.2.tgz",
-      "integrity": "sha512-Ra/OXQtuh0/enyl4ETZAfTaeksa6BXks5ZcjpSUNrjBr0DvrJKX+1fsKDPpT9TBXgHAFsa4510aNVgI8g/+SzA==",
+      "version": "1.13.1",
+      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.13.1.tgz",
+      "integrity": "sha1-US322mKHFEMW3EwY/hzx2UBzm+M=",
       "dev": true,
       "optional": true,
       "requires": {
@@ -6603,7 +6616,6 @@
         "ecc-jsbn": "~0.1.1",
         "getpass": "^0.1.1",
         "jsbn": "~0.1.0",
-        "safer-buffer": "^2.0.2",
         "tweetnacl": "~0.14.0"
       }
     },
@@ -6670,6 +6682,13 @@
         "safe-buffer": "~5.1.0"
       }
     },
+    "stringstream": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
+      "integrity": "sha1-TkhM1N5aC7vuGORjB3EKioFiGHg=",
+      "dev": true,
+      "optional": true
+    },
     "strip-ansi": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
@@ -6823,23 +6842,13 @@
       }
     },
     "tough-cookie": {
-      "version": "2.4.3",
-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
-      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.3.tgz",
+      "integrity": "sha1-C2GKVWW23qkL80JdBNVe3EdadWE=",
       "dev": true,
       "optional": true,
       "requires": {
-        "psl": "^1.1.24",
         "punycode": "^1.4.1"
-      },
-      "dependencies": {
-        "punycode": {
-          "version": "1.4.1",
-          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
-          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
-          "dev": true,
-          "optional": true
-        }
       }
     },
     "tunnel-agent": {
@@ -6856,7 +6865,8 @@
       "version": "0.14.5",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "ua-parser-js": {
       "version": "0.7.17",
@@ -7048,16 +7058,6 @@
       "integrity": "sha1-9rRQHC7EzdJrp4vnIilh3ndiFZg=",
       "dev": true
     },
-    "uri-js": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
-      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "punycode": "^2.1.0"
-      }
-    },
     "urix": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/urix/-/urix-0.1.0.tgz",
@@ -7083,9 +7083,9 @@
       "dev": true
     },
     "uuid": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
+      "integrity": "sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g==",
       "dev": true,
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@@ -7172,8 +7172,7 @@
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       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true,
-      "optional": true
+      "dev": true
     },
     "ws": {
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diff --git a/docs/package.json b/docs/package.json
index 023d4fb..5d3aff8 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -12,7 +12,7 @@
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     "hexo-prism-plus": "1.1.0",
     "hexo-renderer-ejs": "0.3.1",
-    "hexo-renderer-less": "1.0.0",
+    "hexo-renderer-less": "0.2.0",
     "hexo-renderer-marked": "0.3.2",
     "hexo-server": "0.3.3",
     "meteor-theme-hexo": "2.0.1"