diff --git a/functions/package-lock.json b/functions/package-lock.json
index 59b2a48..2428958 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
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@@ -3859,6 +3926,13 @@
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@@ -4064,6 +4150,16 @@
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+      "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.0.4.tgz",
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@@ -4288,9 +4384,9 @@
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@@ -4503,6 +4599,11 @@
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+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
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@@ -4545,12 +4646,27 @@
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-        "mime-types": "~2.1.18"
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@@ -4676,7 +4792,7 @@
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-      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
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@@ -4752,7 +4868,7 @@
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diff --git a/functions/package.json b/functions/package.json
index ea3f1f8..6e44a70 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -11,7 +11,7 @@
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-    "express": "4.16.4",
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     "firebase-functions": "2.2.0",
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