diff --git a/firebase-firestore-comments/yarn.lock b/firebase-firestore-comments/yarn.lock
index a9d17f67..5937f687 100644
--- a/firebase-firestore-comments/yarn.lock
+++ b/firebase-firestore-comments/yarn.lock
@@ -1109,6 +1109,13 @@ d@1:
   dependencies:
     es5-ext "^0.10.9"
 
+d@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/d/-/d-1.0.1.tgz#8698095372d58dbee346ffd0c7093f99f8f9eb5a"
+  dependencies:
+    es5-ext "^0.10.50"
+    type "^1.0.1"
+
 dashdash@^1.12.0:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/dashdash/-/dashdash-1.14.1.tgz#853cfa0f7cbe2fed5de20326b8dd581035f6e2f0"
@@ -1261,14 +1268,16 @@ error-ex@^1.2.0:
   dependencies:
     is-arrayish "^0.2.1"
 
-es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
-  version "0.10.39"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.39.tgz#fca21b67559277ca4ac1a1ed7048b107b6f76d87"
+es5-ext@^0.10.35, es5-ext@^0.10.50, es5-ext@^0.10.62, es5-ext@^0.10.9, es5-ext@~0.10.14:
+  version "0.10.63"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.63.tgz#9c222a63b6a332ac80b1e373b426af723b895bd6"
   dependencies:
-    es6-iterator "~2.0.3"
-    es6-symbol "~3.1.1"
+    es6-iterator "^2.0.3"
+    es6-symbol "^3.1.3"
+    esniff "^2.0.1"
+    next-tick "^1.1.0"
 
-es6-iterator@~2.0.1, es6-iterator@~2.0.3:
+es6-iterator@^2.0.3, es6-iterator@~2.0.1:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
   dependencies:
@@ -1286,13 +1295,20 @@ es6-set@^0.1.4:
     es6-symbol "3.1.1"
     event-emitter "~0.3.5"
 
-es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
+es6-symbol@3.1.1, es6-symbol@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
   dependencies:
     d "1"
     es5-ext "~0.10.14"
 
+es6-symbol@^3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.3.tgz#bad5d3c1bcdac28269f4cb331e431c78ac705d18"
+  dependencies:
+    d "^1.0.1"
+    ext "^1.1.2"
+
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -1301,6 +1317,15 @@ escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
+esniff@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/esniff/-/esniff-2.0.1.tgz#a4d4b43a5c71c7ec51c51098c1d8a29081f9b308"
+  dependencies:
+    d "^1.0.1"
+    es5-ext "^0.10.62"
+    event-emitter "^0.3.5"
+    type "^2.7.2"
+
 esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
@@ -1309,7 +1334,7 @@ etag@~1.8.0, etag@~1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
 
-event-emitter@~0.3.5:
+event-emitter@^0.3.5, event-emitter@~0.3.5:
   version "0.3.5"
   resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
   dependencies:
@@ -1420,6 +1445,12 @@ express@^4.0.33, express@^4.16.2:
     utils-merge "1.0.1"
     vary "~1.1.2"
 
+ext@^1.1.2:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/ext/-/ext-1.7.0.tgz#0ea4383c0103d60e70be99e9a7f11027a33c4f5f"
+  dependencies:
+    type "^2.7.2"
+
 extend-shallow@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
@@ -2799,6 +2830,10 @@ nested-error-stacks@^1.0.0:
   dependencies:
     inherits "~2.0.1"
 
+next-tick@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.1.0.tgz#1836ee30ad56d67ef281b22bd199f709449b35eb"
+
 node-forge@^0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.7.1.tgz#9da611ea08982f4b94206b3beb4cc9665f20c300"
@@ -3997,6 +4032,14 @@ type-is@~1.6.15:
     media-typer "0.3.0"
     mime-types "~2.1.18"
 
+type@^1.0.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/type/-/type-1.2.0.tgz#848dd7698dafa3e54a6c479e759c4bc3f18847a0"
+
+type@^2.7.2:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/type/-/type-2.7.2.tgz#2376a15a3a28b1efa0f5350dcf72d24df6ef98d0"
+
 typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"