diff --git a/package-lock.json b/package-lock.json
index 9dac97d..c8725cf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -437,6 +437,11 @@
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-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
+      "version": "0.5.4",
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@@ -1941,14 +1956,14 @@
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-      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
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+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.2.tgz",
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-      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
+      "integrity": "sha512-QADzlaHc8icV8I7vbaJXJwod9HWYp8uCqf1xa4OfNu1T7JVxQIrUgOWtHdNDtPiywmFbiS12VjotIXLrKM3orQ=="
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@@ -2368,7 +2383,7 @@
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-      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
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@@ -2504,9 +2519,9 @@
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-      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.1.tgz",
-      "integrity": "sha1-eePVhlU0aQn+bw9Fpd5oEDspTSA="
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
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@@ -2560,7 +2575,7 @@
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-      "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
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@@ -2608,7 +2623,7 @@
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-      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
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@@ -2732,46 +2747,160 @@
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-      "integrity": "sha1-41xt/i1kt9ygpc1PIXgb4ymeB2w=",
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-        "encodeurl": "~1.0.1",
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         "etag": "~1.8.1",
-        "finalhandler": "1.1.0",
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+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+          "integrity": "sha512-OpZ3zP+jT1PI7I8nemJX4AKmAX070ZkYPVWV/AaKTJl+tXCTGyVdC1a4SL8RUQYEwk/f34ZX8UTykN68FwrqAA=="
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+          "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+          "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+          "requires": {
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@@ -2946,17 +3075,29 @@
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-      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.0.tgz",
-      "integrity": "sha1-zgtoVbRYU+eRsvzGgARtiCU91/U=",
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.2.tgz",
+      "integrity": "sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==",
       "requires": {
         "debug": "2.6.9",
-        "encodeurl": "~1.0.1",
+        "encodeurl": "~1.0.2",
         "escape-html": "~1.0.3",
         "on-finished": "~2.3.0",
-        "parseurl": "~1.3.2",
-        "statuses": "~1.3.1",
+        "parseurl": "~1.3.3",
+        "statuses": "~1.5.0",
         "unpipe": "~1.0.0"
+      },
+      "dependencies": {
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+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+          "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
+        },
+        "statuses": {
+          "version": "1.5.0",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+          "integrity": "sha512-OpZ3zP+jT1PI7I8nemJX4AKmAX070ZkYPVWV/AaKTJl+tXCTGyVdC1a4SL8RUQYEwk/f34ZX8UTykN68FwrqAA=="
+        }
       }
     },
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@@ -3076,9 +3217,9 @@
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-      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
-      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
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@@ -3092,7 +3233,7 @@
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-      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
+      "integrity": "sha512-zJ2mQYM18rEFOudeV4GShTGIQ7RbzA7ozbU9I/XBpm7kqgMywgmylMwXHxZJmkVoYkna9d2pVXVXPdYTP9ej8Q=="
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@@ -3164,7 +3305,8 @@
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@@ -3185,12 +3327,14 @@
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           "bundled": true,
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@@ -3205,17 +3349,20 @@
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@@ -3332,7 +3479,8 @@
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@@ -3344,6 +3492,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
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@@ -3358,6 +3507,7 @@
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           "dev": true,
+          "optional": true,
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@@ -3365,12 +3515,14 @@
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-          "dev": true
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+          "optional": true
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           "bundled": true,
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@@ -3389,6 +3541,7 @@
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@@ -3469,7 +3622,8 @@
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@@ -3481,6 +3635,7 @@
           "version": "1.4.0",
           "bundled": true,
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@@ -3566,7 +3721,8 @@
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@@ -3602,6 +3758,7 @@
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@@ -3664,12 +3822,14 @@
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@@ -4382,9 +4542,9 @@
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@@ -5367,7 +5527,7 @@
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@@ -5425,9 +5585,9 @@
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@@ -6488,7 +6648,7 @@
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-      "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
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@@ -7205,12 +7365,12 @@
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-      "integrity": "sha1-ZXFQT0e7mI7IGAJT+F3X4UlSvew=",
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
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-        "forwarded": "~0.1.2",
-        "ipaddr.js": "1.5.2"
+        "forwarded": "0.2.0",
+        "ipaddr.js": "1.9.1"
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@@ -7324,9 +7484,9 @@
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-      "integrity": "sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4="
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
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@@ -7797,6 +7957,11 @@
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+    "safer-buffer": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
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+    },
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@@ -7872,23 +8037,57 @@
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+      "version": "0.17.2",
+      "resolved": "https://registry.npmjs.org/send/-/send-0.17.2.tgz",
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       "requires": {
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-        "depd": "~1.1.1",
+        "depd": "~1.1.2",
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+        "encodeurl": "~1.0.2",
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         "fresh": "0.5.2",
-        "http-errors": "~1.6.2",
-        "mime": "1.4.1",
-        "ms": "2.0.0",
+        "http-errors": "1.8.1",
+        "mime": "1.6.0",
+        "ms": "2.1.3",
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-        "range-parser": "~1.2.0",
-        "statuses": "~1.3.1"
+        "range-parser": "~1.2.1",
+        "statuses": "~1.5.0"
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+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
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+        },
+        "http-errors": {
+          "version": "1.8.1",
+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.8.1.tgz",
+          "integrity": "sha512-Kpk9Sm7NmI+RHhnj6OIWDI1d6fIoFAtFt9RLaTMRlg/8w49juAStsrBgp0Dp4OdxdVbRIeKhtCUvoi/RuAhO4g==",
+          "requires": {
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+            "inherits": "2.0.4",
+            "setprototypeof": "1.2.0",
+            "statuses": ">= 1.5.0 < 2",
+            "toidentifier": "1.0.1"
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+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
+        },
+        "statuses": {
+          "version": "1.5.0",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+          "integrity": "sha512-OpZ3zP+jT1PI7I8nemJX4AKmAX070ZkYPVWV/AaKTJl+tXCTGyVdC1a4SL8RUQYEwk/f34ZX8UTykN68FwrqAA=="
+        }
       }
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     "serialize-javascript": {
@@ -7898,14 +8097,21 @@
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-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.1.tgz",
-      "integrity": "sha512-hSMUZrsPa/I09VYFJwa627JJkNs0NrfL1Uzuup+GqHfToR2KcsXFymXSV90hoyw3M+msjFuQly+YzIH/q0MGlQ==",
+      "version": "1.14.2",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.2.tgz",
+      "integrity": "sha512-+TMNA9AFxUEGuC0z2mevogSnn9MXKb4fa7ngeRMJaaGv8vTwnIEkKi+QGvPt33HSnf8pRS+WGM0EbMtCJLKMBQ==",
       "requires": {
-        "encodeurl": "~1.0.1",
+        "encodeurl": "~1.0.2",
         "escape-html": "~1.0.3",
-        "parseurl": "~1.3.2",
-        "send": "0.16.1"
+        "parseurl": "~1.3.3",
+        "send": "0.17.2"
+      },
+      "dependencies": {
+        "parseurl": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+          "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
+        }
       }
     },
     "set-blocking": {
@@ -7944,9 +8150,9 @@
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-      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
-      "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ=="
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
     },
     "sha.js": {
       "version": "2.4.11",
@@ -8783,6 +8989,11 @@
         "repeat-string": "^1.6.1"
       }
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+    "toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA=="
+    },
     "tough-cookie": {
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.3.tgz",
@@ -9047,7 +9258,7 @@
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-      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+      "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA=="
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diff --git a/package.json b/package.json
index 98fe9a5..165d7dd 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "compression": "^1.7.1",
     "dotenv": "^4.0.0",
     "ejs": "^2.5.7",
-    "express": "^4.16.2",
+    "express": "^4.17.3",
     "lodash": "^4.17.4",
     "method-override": "^2.3.10",
     "mongoose": "^4.13.4",