diff --git a/package-lock.json b/package-lock.json
index 8cee015..c45dcbc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "dependencies": {
         "cookie-parser": "~1.4.4",
         "debug": "~2.6.9",
-        "ejs": "~2.6.1",
+        "ejs": "~3.1.7",
         "express": "~4.16.1",
         "http-errors": "~1.6.3",
         "morgan": "~1.9.1",
@@ -100,6 +100,20 @@
         "uri-js": "^4.2.2"
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+    "node_modules/ansi-styles": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+      "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+      "dependencies": {
+        "color-convert": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
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       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
@@ -126,6 +140,11 @@
         "node": ">=0.8"
       }
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+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.4.tgz",
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+    },
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       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -144,6 +163,11 @@
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+    "node_modules/balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
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+    },
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       "resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-2.0.1.tgz",
@@ -183,6 +207,15 @@
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+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dependencies": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
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     "node_modules/buffer-equal-constant-time": {
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       "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz",
@@ -201,6 +234,37 @@
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       "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
     },
+    "node_modules/chalk": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
+      "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
+      "dependencies": {
+        "ansi-styles": "^4.1.0",
+        "supports-color": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/chalk?sponsor=1"
+      }
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+    "node_modules/color-convert": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "dependencies": {
+        "color-name": "~1.1.4"
+      },
+      "engines": {
+        "node": ">=7.0.0"
+      }
+    },
+    "node_modules/color-name": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
+    },
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@@ -212,6 +276,11 @@
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       }
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+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg=="
+    },
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       "version": "0.5.2",
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@@ -326,9 +395,15 @@
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-      "integrity": "sha512-PcW2a0tyTuPHz3tWyYqtK6r1fZ3gp+3Sop8Ph+ZYN81Ob5rwmbHEzaqs10N3BEsaGTkh/ooniXK+WwszGlc2+Q==",
+      "version": "3.1.7",
+      "resolved": "https://registry.npmjs.org/ejs/-/ejs-3.1.7.tgz",
+      "integrity": "sha512-BIar7R6abbUxDA3bfXrO4DSgwo8I+fB5/1zgujl3HLLjwd6+9iOnrT+t3grn2qbk9vOgBubXOFwX2m9axoFaGw==",
+      "dependencies": {
+        "jake": "^10.8.5"
+      },
+      "bin": {
+        "ejs": "bin/cli.js"
+      },
       "engines": {
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@@ -417,6 +492,33 @@
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       "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
     },
+    "node_modules/filelist": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/filelist/-/filelist-1.0.4.tgz",
+      "integrity": "sha512-w1cEuf3S+DrLCQL7ET6kz+gmlJdbq9J7yXCSjK/OZCPA+qEN1WyF4ZAf0YYJa4/shHJra2t/d/r8SV4Ji+x+8Q==",
+      "dependencies": {
+        "minimatch": "^5.0.1"
+      }
+    },
+    "node_modules/filelist/node_modules/brace-expansion": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+      "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
+    },
+    "node_modules/filelist/node_modules/minimatch": {
+      "version": "5.1.6",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+      "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
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       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
@@ -500,6 +602,14 @@
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+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+      "engines": {
+        "node": ">=8"
+      }
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       "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
@@ -562,6 +672,23 @@
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       "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
     },
+    "node_modules/jake": {
+      "version": "10.8.5",
+      "resolved": "https://registry.npmjs.org/jake/-/jake-10.8.5.tgz",
+      "integrity": "sha512-sVpxYeuAhWt0OTWITwT98oyV0GsXyMlXCF+3L1SuafBVUIr/uILGRB+NqwkzhgXKvoJpDIpQvqkUALgdmQsQxw==",
+      "dependencies": {
+        "async": "^3.2.3",
+        "chalk": "^4.0.2",
+        "filelist": "^1.0.1",
+        "minimatch": "^3.0.4"
+      },
+      "bin": {
+        "jake": "bin/cli.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
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       "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
@@ -729,6 +856,17 @@
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+    "node_modules/minimatch": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
+      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+      "dependencies": {
+        "brace-expansion": "^1.1.7"
+      },
+      "engines": {
+        "node": "*"
+      }
+    },
     "node_modules/moment": {
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       "resolved": "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz",
@@ -1013,6 +1151,17 @@
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       }
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+    "node_modules/supports-color": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+      "dependencies": {
+        "has-flag": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/tough-cookie": {
       "version": "2.4.3",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
@@ -1227,6 +1376,14 @@
         "uri-js": "^4.2.2"
       }
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+    "ansi-styles": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+      "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+      "requires": {
+        "color-convert": "^2.0.1"
+      }
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@@ -1250,6 +1407,11 @@
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       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
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+    "async": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.4.tgz",
+      "integrity": "sha512-iAB+JbDEGXhyIUavoDl9WP/Jj106Kz9DEn1DPgYw5ruDn0e3Wgi3sKFm55sASdGBNOQB8F59d9qQ7deqrHA8wQ=="
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@@ -1265,6 +1427,11 @@
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+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw=="
+    },
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@@ -1298,6 +1465,15 @@
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+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "requires": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
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     "buffer-equal-constant-time": {
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@@ -1313,6 +1489,28 @@
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       "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
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+    "chalk": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
+      "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
+      "requires": {
+        "ansi-styles": "^4.1.0",
+        "supports-color": "^7.1.0"
+      }
+    },
+    "color-convert": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "requires": {
+        "color-name": "~1.1.4"
+      }
+    },
+    "color-name": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
+    },
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@@ -1321,6 +1519,11 @@
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+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
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+    },
     "content-disposition": {
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@@ -1414,9 +1617,12 @@
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+      "resolved": "https://registry.npmjs.org/ejs/-/ejs-3.1.7.tgz",
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+      "requires": {
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+      }
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@@ -1490,6 +1696,32 @@
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       "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
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+      "resolved": "https://registry.npmjs.org/filelist/-/filelist-1.0.4.tgz",
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+      "requires": {
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+          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
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+          "requires": {
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+          }
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+        "minimatch": {
+          "version": "5.1.6",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
+          "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
+          "requires": {
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@@ -1551,6 +1783,11 @@
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+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
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+    },
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       "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
@@ -1600,6 +1837,17 @@
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       "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
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+    "jake": {
+      "version": "10.8.5",
+      "resolved": "https://registry.npmjs.org/jake/-/jake-10.8.5.tgz",
+      "integrity": "sha512-sVpxYeuAhWt0OTWITwT98oyV0GsXyMlXCF+3L1SuafBVUIr/uILGRB+NqwkzhgXKvoJpDIpQvqkUALgdmQsQxw==",
+      "requires": {
+        "async": "^3.2.3",
+        "chalk": "^4.0.2",
+        "filelist": "^1.0.1",
+        "minimatch": "^3.0.4"
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     "jsbn": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
@@ -1747,6 +1995,14 @@
         "mime-db": "1.40.0"
       }
     },
+    "minimatch": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
+      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+      "requires": {
+        "brace-expansion": "^1.1.7"
+      }
+    },
     "moment": {
       "version": "2.24.0",
       "resolved": "https://registry.npmjs.org/moment/-/moment-2.24.0.tgz",
@@ -1971,6 +2227,14 @@
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
       "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
     },
+    "supports-color": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+      "requires": {
+        "has-flag": "^4.0.0"
+      }
+    },
     "tough-cookie": {
       "version": "2.4.3",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
diff --git a/package.json b/package.json
index f4901fa..07e9cd7 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   "dependencies": {
     "cookie-parser": "~1.4.4",
     "debug": "~2.6.9",
-    "ejs": "~2.6.1",
+    "ejs": "~3.1.7",
     "express": "~4.16.1",
     "http-errors": "~1.6.3",
     "morgan": "~1.9.1",