diff --git a/package.json b/package.json
index 8d77f2d..9e09198 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "autoprefixer": "^6.6.1",
     "babel-polyfill": "^6.16.0",
     "cross-env": "^3.1.3",
-    "ejs": "^2.5.3",
+    "ejs": "^3.1.7",
     "file-loader": "^0.9.0",
     "koa": "^2.0.0",
     "koa-mount": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index 15c4be6..292278e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -111,6 +111,13 @@ ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
+ansi-styles@^4.1.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.3.0.tgz#edd803628ae71c04c85ae7a0906edad34b648937"
+  integrity sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==
+  dependencies:
+    color-convert "^2.0.1"
+
 ansi-styles@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.0.0.tgz#cb102df1c56f5123eab8b67cd7b98027a0279178"
@@ -263,6 +270,11 @@ async@^2.1.2:
   dependencies:
     lodash "^4.17.11"
 
+async@^3.2.3:
+  version "3.2.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-3.2.4.tgz#2d22e00f8cddeb5fde5dd33522b56d1cf569a81c"
+  integrity sha512-iAB+JbDEGXhyIUavoDl9WP/Jj106Kz9DEn1DPgYw5ruDn0e3Wgi3sKFm55sASdGBNOQB8F59d9qQ7deqrHA8wQ==
+
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -1137,6 +1149,13 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
+brace-expansion@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-2.0.1.tgz#1edc459e0f0c548486ecf9fc99f2221364b9a0ae"
+  integrity sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==
+  dependencies:
+    balanced-match "^1.0.0"
+
 braces@^1.8.2:
   version "1.8.5"
   resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
@@ -1370,6 +1389,14 @@ chalk@^2.0.1, chalk@^2.4.1:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
+chalk@^4.0.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.2.tgz#aac4e2b7734a740867aeb16bf02aad556a1e7a01"
+  integrity sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==
+  dependencies:
+    ansi-styles "^4.1.0"
+    supports-color "^7.1.0"
+
 chokidar@^1.4.2, chokidar@^1.6.1:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
@@ -1517,11 +1544,18 @@ color-convert@^1.3.0, color-convert@^1.9.0:
   dependencies:
     color-name "1.1.3"
 
+color-convert@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-2.0.1.tgz#72d3a68d598c9bdb3af2ad1e84f21d896abd4de3"
+  integrity sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==
+  dependencies:
+    color-name "~1.1.4"
+
 color-name@1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
-color-name@^1.0.0:
+color-name@^1.0.0, color-name@~1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
 
@@ -2101,9 +2135,12 @@ ee-first@1.1.1, ee-first@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
 
-ejs@^2.5.3:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.6.1.tgz#498ec0d495655abc6f23cd61868d926464071aa0"
+ejs@^3.1.7:
+  version "3.1.7"
+  resolved "https://registry.yarnpkg.com/ejs/-/ejs-3.1.7.tgz#c544d9c7f715783dd92f0bddcf73a59e6962d006"
+  integrity sha512-BIar7R6abbUxDA3bfXrO4DSgwo8I+fB5/1zgujl3HLLjwd6+9iOnrT+t3grn2qbk9vOgBubXOFwX2m9axoFaGw==
+  dependencies:
+    jake "^10.8.5"
 
 electron-to-chromium@^1.2.7:
   version "1.3.139"
@@ -2344,6 +2381,13 @@ file-loader@^0.9.0:
   dependencies:
     loader-utils "~0.2.5"
 
+filelist@^1.0.1:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/filelist/-/filelist-1.0.4.tgz#f78978a1e944775ff9e62e744424f215e58352b5"
+  integrity sha512-w1cEuf3S+DrLCQL7ET6kz+gmlJdbq9J7yXCSjK/OZCPA+qEN1WyF4ZAf0YYJa4/shHJra2t/d/r8SV4Ji+x+8Q==
+  dependencies:
+    minimatch "^5.0.1"
+
 filename-regex@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
@@ -2659,6 +2703,11 @@ has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
 
+has-flag@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-4.0.0.tgz#944771fd9c81c81265c4d6941860da06bb59479b"
+  integrity sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==
+
 has-unicode@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
@@ -3255,6 +3304,16 @@ istanbul-reports@^1.1.0:
   dependencies:
     handlebars "^4.0.3"
 
+jake@^10.8.5:
+  version "10.8.5"
+  resolved "https://registry.yarnpkg.com/jake/-/jake-10.8.5.tgz#f2183d2c59382cb274226034543b9c03b8164c46"
+  integrity sha512-sVpxYeuAhWt0OTWITwT98oyV0GsXyMlXCF+3L1SuafBVUIr/uILGRB+NqwkzhgXKvoJpDIpQvqkUALgdmQsQxw==
+  dependencies:
+    async "^3.2.3"
+    chalk "^4.0.2"
+    filelist "^1.0.1"
+    minimatch "^3.0.4"
+
 jquery@^3.2.1:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.4.1.tgz#714f1f8d9dde4bdfa55764ba37ef214630d80ef2"
@@ -3840,6 +3899,13 @@ minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.4:
   dependencies:
     brace-expansion "^1.1.7"
 
+minimatch@^5.0.1:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-5.1.0.tgz#1717b464f4971b144f6aabe8f2d0b8e4511e09c7"
+  integrity sha512-9TPBGGak4nHfGZsPBohm9AWg6NoT7QTCehS3BIJABslyZbzxfV78QM2Y6+i741OPZIafFAaiiEMh5OyIrJPgtg==
+  dependencies:
+    brace-expansion "^2.0.1"
+
 minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
@@ -5654,6 +5720,13 @@ supports-color@^5.2.0, supports-color@^5.3.0, supports-color@^5.4.0:
   dependencies:
     has-flag "^3.0.0"
 
+supports-color@^7.1.0:
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-7.2.0.tgz#1b7dcdcb32b8138801b3e478ba6a51caa89648da"
+  integrity sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==
+  dependencies:
+    has-flag "^4.0.0"
+
 svgo@^0.7.0:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/svgo/-/svgo-0.7.2.tgz#9f5772413952135c6fefbf40afe6a4faa88b4bb5"