diff --git a/package-lock.json b/package-lock.json
index 8f85c6b..aa228bf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2366,6 +2366,11 @@
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@@ -2447,6 +2452,11 @@
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@@ -3122,15 +3126,6 @@
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@@ -3269,14 +3264,6 @@
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+      "integrity": "sha1-BTfLedr1m1mhpRff9wbIbsA5Fi4=",
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@@ -4458,9 +4446,10 @@
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-      "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
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@@ -4502,20 +4491,12 @@
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-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "version": "0.5.6",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
+      "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==",
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-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
-        }
+        "minimist": "^1.2.6"
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@@ -4582,19 +4563,123 @@
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-      "resolved": "https://registry.npmjs.org/nconf/-/nconf-0.6.9.tgz",
-      "integrity": "sha1-lXDvFe1vmuays8jV5xtm0xk81mE=",
-      "requires": {
-        "async": "0.2.9",
-        "ini": "1.x.x",
-        "optimist": "0.6.0"
+      "version": "0.12.0",
+      "resolved": "https://registry.npmjs.org/nconf/-/nconf-0.12.0.tgz",
+      "integrity": "sha512-T3fZPw3c7Dfrz8JBQEbEcZJ2s8f7cUMpKuyBtsGQe0b71pcXx6gNh4oti2xh5dxB+gO9ufNfISBlGvvWtfyMcA==",
+      "requires": {
+        "async": "^3.0.0",
+        "ini": "^2.0.0",
+        "secure-keys": "^1.0.0",
+        "yargs": "^16.1.1"
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+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
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+        },
+        "ansi-styles": {
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+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
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-          "resolved": "https://registry.npmjs.org/async/-/async-0.2.9.tgz",
-          "integrity": "sha1-32MGD789Myhqdqr21Vophtn/hhk="
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+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-7.0.4.tgz",
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+            "strip-ansi": "^6.0.0",
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+            "is-fullwidth-code-point": "^3.0.0",
+            "strip-ansi": "^6.0.1"
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+        "strip-ansi": {
+          "version": "6.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
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+          "requires": {
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+        "wrap-ansi": {
+          "version": "7.0.0",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
+          "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
+          "requires": {
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+            "string-width": "^4.1.0",
+            "strip-ansi": "^6.0.0"
+          }
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+        "y18n": {
+          "version": "5.0.8",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+          "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA=="
+        },
+        "yargs": {
+          "version": "16.2.0",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
+          "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
+          "requires": {
+            "cliui": "^7.0.2",
+            "escalade": "^3.1.1",
+            "get-caller-file": "^2.0.5",
+            "require-directory": "^2.1.1",
+            "string-width": "^4.2.0",
+            "y18n": "^5.0.5",
+            "yargs-parser": "^20.2.2"
+          }
+        },
+        "yargs-parser": {
+          "version": "20.2.9",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
+          "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w=="
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@@ -4831,15 +4916,6 @@
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       "integrity": "sha1-ko9dD0cNSTQmUepnlLCFfBAGk/c="
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-      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.0.tgz",
-      "integrity": "sha1-aUJIJvNAX3nxQub8PZrljU27kgA=",
-      "requires": {
-        "minimist": "~0.0.1",
-        "wordwrap": "~0.0.2"
-      }
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       "resolved": "https://registry.npmjs.org/os-browserify/-/os-browserify-0.3.0.tgz",
@@ -5893,14 +5969,6 @@
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-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
-          "dev": true
-        }
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@@ -6116,8 +6184,7 @@
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       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
-      "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I=",
-      "dev": true
+      "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I="
     },
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@@ -6201,6 +6268,11 @@
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       "dev": true
     },
+    "secure-keys": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/secure-keys/-/secure-keys-1.0.0.tgz",
+      "integrity": "sha512-nZi59hW3Sl5P3+wOO89eHBAAGwmCPd2aE1+dLZV5MO+ItQctIvAqihzaAXIQhvtH4KJPxM080HsnqltR2y8cWg=="
+    },
     "semver": {
       "version": "5.6.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.6.0.tgz",
@@ -7547,11 +7619,6 @@
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-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
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       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
diff --git a/package.json b/package.json
index 00efddd..3211e54 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "express": "^4.16.4",
     "memoizee": "^0.4.14",
     "morgan": "^1.9.1",
-    "nconf": "^0.6.9",
+    "nconf": "^0.12.0",
     "pug": "^2.0.3",
     "serve-static": "^1.13.2"
   },