diff --git a/package-lock.json b/package-lock.json
index 6e2c0a4..46dc9ca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -482,20 +482,27 @@
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-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
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@@ -1772,9 +1851,9 @@
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@@ -2214,9 +2293,9 @@
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-        "http-errors": "1.6.3",
-        "iconv-lite": "0.4.23",
+        "bytes": "3.1.2",
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@@ -2381,9 +2467,9 @@
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@@ -2392,12 +2478,19 @@
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-        "mime": "1.4.1",
-        "ms": "2.0.0",
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+        "mime": "1.6.0",
+        "ms": "2.1.3",
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-        "range-parser": "~1.2.0",
-        "statuses": "~1.4.0"
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@@ -2407,20 +2500,20 @@
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+      "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",
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-      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
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+      "version": "1.2.0",
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@@ -2494,9 +2587,9 @@
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+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
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diff --git a/package.json b/package.json
index daec489..8854833 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
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-    "express": "~4.16.1",
+    "express": "~4.17.3",
     "junglejs": "^1.1.1"
   }
 }