diff --git a/package-lock.json b/package-lock.json
index 5a3739dc..25b19ae2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,34 +15,6 @@
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@@ -2495,6 +2457,11 @@
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@@ -3380,9 +3347,9 @@
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+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/content-security-policy-builder/-/content-security-policy-builder-2.1.0.tgz",
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-      "integrity": "sha1-YN20V3dOF48flBXwyrsOhbCzALI="
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-      "integrity": "sha1-WTKJDcn04vGeXrAqIAJuXl78j1g="
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-      "integrity": "sha1-UnNWeN4YUwiQ2Ne5XwrGNkCVgJQ="
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@@ -5762,6 +5729,11 @@
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+      "resolved": "https://registry.npmjs.org/feature-policy/-/feature-policy-0.3.0.tgz",
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-      "integrity": "sha1-e8rUae57lukdEs6zlZx4I1qScuk="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/frameguard/-/frameguard-3.1.0.tgz",
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@@ -6141,7 +6113,8 @@
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@@ -6184,7 +6157,8 @@
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@@ -6205,6 +6179,7 @@
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@@ -6212,6 +6187,7 @@
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@@ -6247,7 +6223,8 @@
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@@ -6400,6 +6379,7 @@
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@@ -6411,7 +6391,8 @@
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@@ -6445,7 +6426,8 @@
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@@ -6460,6 +6442,7 @@
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@@ -6467,7 +6450,8 @@
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@@ -6567,17 +6551,20 @@
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-          "bundled": true
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@@ -6643,6 +6630,7 @@
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@@ -6668,7 +6656,8 @@
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@@ -6754,6 +6743,7 @@
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@@ -6835,6 +6825,7 @@
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@@ -6923,7 +6914,8 @@
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@@ -7443,40 +7435,54 @@
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-        "frameguard": "3.0.0",
-        "helmet-csp": "2.7.0",
-        "hide-powered-by": "1.0.0",
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+      "resolved": "https://registry.npmjs.org/helmet/-/helmet-3.21.1.tgz",
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+        "ienoopen": "1.1.0",
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+        "referrer-policy": "1.2.0",
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+        }
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+    "helmet-crossdomain": {
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+      "resolved": "https://registry.npmjs.org/helmet-csp/-/helmet-csp-2.9.2.tgz",
+      "integrity": "sha512-Lt5WqNfbNjEJ6ysD4UNpVktSyjEKfU9LVJ1LaFmPfYseg/xPealPfgHhtqdAdjPDopp5zbg/VWCyp4cluMIckw==",
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-        "dasherize": "2.0.0",
-        "lodash.reduce": "4.6.0",
-        "platform": "1.3.5"
+        "content-security-policy-builder": "2.1.0",
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-      "integrity": "sha1-SoWtZYgfYoV/xwr3F0oRhNzM4ys="
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/hide-powered-by/-/hide-powered-by-1.1.0.tgz",
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@@ -7555,9 +7561,19 @@
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+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/hsts/-/hsts-2.2.0.tgz",
+      "integrity": "sha512-ToaTnQ2TbJkochoVcdXYm4HOCliNozlviNsg+X2XQLQvZNI/kCHR9rZxVYpJB3UPcHz80PgxRyWQ7PdU1r+VBQ==",
+      "requires": {
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+        }
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@@ -7830,9 +7846,9 @@
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-      "integrity": "sha1-NGpCj0dKrI9QzzeE6i0PFvYr2ms="
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/ienoopen/-/ienoopen-1.1.0.tgz",
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+      "optional": true
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@@ -10573,9 +10585,9 @@
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-      "integrity": "sha1-ICtIAhoMTL3i34DeFaF0Q8i0OYA="
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/nocache/-/nocache-2.1.0.tgz",
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@@ -11991,11 +12003,6 @@
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       "resolved": "https://registry.npmjs.org/pleeease-filters/-/pleeease-filters-4.0.0.tgz",
@@ -15543,9 +15550,9 @@
       "integrity": "sha1-5hWhbha0ehmlFXZhM9Hj6Zt4UuU="
     },
     "referrer-policy": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/referrer-policy/-/referrer-policy-1.1.0.tgz",
-      "integrity": "sha1-NXdOtzW/UPtsB46DM0tHI1AgfXk="
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/referrer-policy/-/referrer-policy-1.2.0.tgz",
+      "integrity": "sha512-LgQJIuS6nAy1Jd88DCQRemyE3mS+ispwlqMk3b0yjZ257fI1v9c+/p6SD5gP5FGyXUIgrNOAfmyioHwZtYv2VA=="
     },
     "regenerate": {
       "version": "1.3.3",
@@ -19952,9 +19959,9 @@
       "dev": true
     },
     "x-xss-protection": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/x-xss-protection/-/x-xss-protection-1.0.0.tgz",
-      "integrity": "sha1-iYr7k4abJGYc+cUvnujbjtB2Tdk="
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/x-xss-protection/-/x-xss-protection-1.3.0.tgz",
+      "integrity": "sha512-kpyBI9TlVipZO4diReZMAHWtS0MMa/7Kgx8hwG/EuZLiA6sg4Ah/4TRdASHhRRN3boobzcYgFRUFSgHRge6Qhg=="
     },
     "xml-name-validator": {
       "version": "3.0.0",
diff --git a/package.json b/package.json
index d6f2aa84..65c67ca9 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "compression": "^1.7.2",
     "cookie-parser": "^1.4.3",
     "express": "^4.16.2",
-    "helmet": "^3.11.0",
+    "helmet": "^3.21.1",
     "history": "^4.7.2",
     "isomorphic-fetch": "^2.2.1",
     "lodash": "^4.17.5",