diff --git a/package-lock.json b/package-lock.json
index fcf26c1..1426a4f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,12 +18,27 @@
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@@ -141,9 +185,9 @@
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@@ -246,9 +290,19 @@
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-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
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@@ -305,7 +359,7 @@
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@@ -329,12 +383,12 @@
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@@ -344,75 +398,97 @@
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@@ -782,9 +858,9 @@
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+        "bytes": "3.1.2",
+        "http-errors": "1.8.1",
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+            "inherits": "2.0.4",
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+            "statuses": ">= 1.5.0 < 2",
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+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
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+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
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+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
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@@ -850,9 +955,9 @@
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@@ -861,23 +966,57 @@
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-        "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": "~1.4.0"
+        "range-parser": "~1.2.1",
+        "statuses": "~1.5.0"
+      },
+      "dependencies": {
+        "http-errors": {
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+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.8.1.tgz",
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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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+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
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+        },
+        "ms": {
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+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
+        },
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
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+        },
+        "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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-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz",
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+      "version": "1.14.2",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.2.tgz",
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         "escape-html": "~1.0.3",
-        "parseurl": "~1.3.2",
-        "send": "0.16.2"
+        "parseurl": "~1.3.3",
+        "send": "0.17.2"
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@@ -913,6 +1052,11 @@
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       "integrity": "sha1-uDVx+k2MJbguIxsG46MFXeTKGkc="
     },
+    "toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA=="
+    },
     "token-stream": {
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       "resolved": "https://registry.npmjs.org/token-stream/-/token-stream-0.0.1.tgz",
@@ -958,7 +1102,7 @@
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-      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ=="
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@@ -968,12 +1112,12 @@
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-      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
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-      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
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diff --git a/package.json b/package.json
index 1b1535c..8c29310 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
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     "cookie-parser": "~1.4.4",
     "debug": "~2.6.9",
-    "express": "~4.16.1",
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     "http-errors": "~1.6.3",
     "morgan": "~1.9.1",
     "multer": "^1.4.2",