diff --git a/assets/package-lock.json b/assets/package-lock.json
index e4566783..1dd99958 100644
--- a/assets/package-lock.json
+++ b/assets/package-lock.json
@@ -2905,11 +2905,6 @@
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-      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-3.0.2.tgz",
-      "integrity": "sha1-AQ1YWEI6XxGJeWZfRkhqlcbuK7Y="
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       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -4806,7 +4801,7 @@
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       "resolved": "https://registry.npmjs.org/immediate/-/immediate-3.0.6.tgz",
-      "integrity": "sha1-nbHb0Pr43m++D13V5Wu2BigN5ps="
+      "integrity": "sha512-XXOFtyqDjNDAQxVfYxuF7g9Il/IbWmmlQg2MYKOH8ExIT1qg6xc4zyS3HaEEATgs1btfzxq15ciUiY7gjSXRGQ=="
     },
     "import-local": {
       "version": "2.0.0",
@@ -5156,45 +5151,14 @@
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     "jszip": {
-      "version": "3.1.5",
-      "resolved": "https://registry.npmjs.org/jszip/-/jszip-3.1.5.tgz",
-      "integrity": "sha1-48KmxtcGrG5gMxQDbUPNQL7v3zc=",
+      "version": "3.7.0",
+      "resolved": "https://registry.npmjs.org/jszip/-/jszip-3.7.0.tgz",
+      "integrity": "sha512-Y2OlFIzrDOPWUnpU0LORIcDn2xN7rC9yKffFM/7pGhQuhO+SUhfm2trkJ/S5amjFvem0Y+1EALz/MEPkvHXVNw==",
       "requires": {
-        "core-js": "~2.3.0",
-        "es6-promise": "~3.0.2",
-        "lie": "~3.1.0",
+        "lie": "~3.3.0",
         "pako": "~1.0.2",
-        "readable-stream": "~2.0.6"
-      },
-      "dependencies": {
-        "core-js": {
-          "version": "2.3.0",
-          "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.3.0.tgz",
-          "integrity": "sha1-+rg/uwstjchfpjbEudNMdUIMbWU="
-        },
-        "process-nextick-args": {
-          "version": "1.0.7",
-          "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-1.0.7.tgz",
-          "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M="
-        },
-        "readable-stream": {
-          "version": "2.0.6",
-          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.0.6.tgz",
-          "integrity": "sha1-j5A0HmilPMySh4jaz80Rs265t44=",
-          "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.1",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~1.0.6",
-            "string_decoder": "~0.10.x",
-            "util-deprecate": "~1.0.1"
-          }
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-        "string_decoder": {
-          "version": "0.10.31",
-          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
-          "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ="
-        }
+        "readable-stream": "~2.3.6",
+        "set-immediate-shim": "~1.0.1"
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     "killable": {
@@ -5219,9 +5183,9 @@
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     "lie": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/lie/-/lie-3.1.1.tgz",
-      "integrity": "sha1-mkNrLMd0bKWd56QfpGmz77dr2H4=",
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/lie/-/lie-3.3.0.tgz",
+      "integrity": "sha512-UaiMJzeWRlEujzAuw5LokY1L5ecNQYZKfmyZ9L7wDHb/p5etKaxXhohBcrw0EYby+G/NA52vRSN4N39dxHAIwQ==",
       "requires": {
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@@ -7029,6 +6993,11 @@
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       "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc="
     },
+    "set-immediate-shim": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz",
+      "integrity": "sha512-Li5AOqrZWCVA2n5kryzEmqai6bKSIvpz5oUJHPVj6+dsbD3X1ixtsY5tEnsaNpH3pFAHmG8eIHUrtEtohrg+UQ=="
+    },
     "set-value": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.1.tgz",
diff --git a/assets/package.json b/assets/package.json
index 25ceb975..d1b17857 100644
--- a/assets/package.json
+++ b/assets/package.json
@@ -23,7 +23,7 @@
     "elm": "^0.19.1-3",
     "elm-format": "^0.8.2",
     "elm-webpack-loader": "^6.0.1",
-    "jszip": "3.1.5",
+    "jszip": "3.7.0",
     "newless": "0.3.0",
     "opbeat-js": "3.1.4",
     "phoenix": "1.3.0",