diff --git a/functions/package-lock.json b/functions/package-lock.json
index 5ef5587..ea179d4 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
@@ -2464,6 +2464,16 @@
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+          "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.12.tgz",
+          "integrity": "sha1-U4tm8+5izRq1HsMjgp0flIDHS+s=",
+          "requires": {
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+          }
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@@ -3327,11 +3337,6 @@
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-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
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@@ -3588,31 +3593,6 @@
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-      "resolved": "https://registry.npmjs.org/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz",
-      "integrity": "sha1-YRrhrPFPXoH3KVB0coGf6XM1WKk=",
-      "requires": {
-        "node-fetch": "^1.0.1",
-        "whatwg-fetch": ">=0.10.0"
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-          "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ="
-        },
-        "node-fetch": {
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-          "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-1.7.3.tgz",
-          "integrity": "sha512-NhZ4CsKx7cYm2vSrBAr2PvFOe6sWDf0UYLRqA6svUYg7+/TSfVAu49jYC4BvQ4Sms9SZgdqGBgroqfDhJdTyKQ==",
-          "requires": {
-            "encoding": "^0.1.11",
-            "is-stream": "^1.0.1"
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@@ -3806,9 +3786,9 @@
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-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
-      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash.at": {
       "version": "4.6.0",
@@ -4596,11 +4576,6 @@
         "iterate-value": "^1.0.0"
       }
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-    "promise-polyfill": {
-      "version": "8.1.3",
-      "resolved": "https://registry.npmjs.org/promise-polyfill/-/promise-polyfill-8.1.3.tgz",
-      "integrity": "sha512-MG5r82wBzh7pSKDRa9y+vllNHz3e3d4CNj1PQE4BQYxLme0gKYYBm9YENq+UkEikyZ0XbiGWxYlVw3Rl9O/U8g=="
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       "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-6.9.0.tgz",