diff --git a/package-lock.json b/package-lock.json
index 2191f94..4ec1409 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1317,9 +1317,9 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
     },
     "color-string": {
-      "version": "1.5.3",
-      "resolved": "https://registry.npmjs.org/color-string/-/color-string-1.5.3.tgz",
-      "integrity": "sha512-dC2C5qeWoYkxki5UAXapdjqO672AM4vZuPGRQfO8b5HKuKGBbKWpITyDYN7TOFKvRW7kOgAn3746clDBMDJyQw==",
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/color-string/-/color-string-1.9.1.tgz",
+      "integrity": "sha512-shrVawQFojnZv6xM40anx4CkoDP+fZsw/ZerEMsW/pyzsRbElpsL/DBVW7q3ExxwusdNXI3lXpuhEZkzs8p5Eg==",
       "requires": {
         "color-name": "^1.0.0",
         "simple-swizzle": "^0.2.2"
diff --git a/yarn.lock b/yarn.lock
index c8090ac..93b8a97 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -978,6 +978,13 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
+cors@^2.8.5:
+  version "2.8.5"
+  resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
+  dependencies:
+    object-assign "^4"
+    vary "^1"
+
 create-error-class@^3.0.0, create-error-class@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/create-error-class/-/create-error-class-3.0.2.tgz#06be7abef947a3f14a30fd610671d401bca8b7b6"
@@ -1288,7 +1295,7 @@ etag@~1.8.1:
 
 event-stream@~3.3.0:
   version "3.3.4"
-  resolved "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
+  resolved "https://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
   dependencies:
     duplexer "~0.1.1"
     from "~0"
@@ -3067,6 +3074,10 @@ mkdirp@^0.5.0, mkdirp@^0.5.1:
   dependencies:
     minimist "0.0.8"
 
+mock-cloud-firestore@^0.9.3:
+  version "0.9.3"
+  resolved "https://registry.yarnpkg.com/mock-cloud-firestore/-/mock-cloud-firestore-0.9.3.tgz#806d945260e53ba13dbef220591398b1b5447499"
+
 modelo@^4.2.0:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/modelo/-/modelo-4.2.3.tgz#b278588a4db87fc1e5107ae3a277c0876f38d894"
@@ -3274,7 +3285,7 @@ oauth-sign@~0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
 
-object-assign@^4.1.0:
+object-assign@^4, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
@@ -4563,7 +4574,7 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-vary@~1.1.2:
+vary@^1, vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"