diff --git a/yarn.lock b/yarn.lock
index 809c42d..80b4198 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -862,6 +862,10 @@ base64-js@^1.1.2:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.2.1.tgz#a91947da1f4a516ea38e5b4ec0ec3773675e0886"
 
+base64-js@^1.3.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
+
 base64-url@1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/base64-url/-/base64-url-1.2.1.tgz#199fd661702a0e7b7dcae6e0698bb089c52f6d78"
@@ -982,6 +986,13 @@ buffer-equal-constant-time@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz#f8e71132f7ffe6e01a5c9697a4c6f3e48d5cc819"
 
+buffer@^5.0.7:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
+  dependencies:
+    base64-js "^1.3.1"
+    ieee754 "^1.1.13"
+
 builtin-modules@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
@@ -1320,7 +1331,7 @@ dateformat@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-2.0.0.tgz#2743e3abb5c3fc2462e527dca445e04e9f4dee17"
 
-debug@2.6.8, debug@^2.1.1, debug@^2.2.0, debug@^2.4.5, debug@^2.6.3:
+debug@2.6.8, debug@^2.1.1, debug@^2.2.0, debug@^2.6.3:
   version "2.6.8"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
   dependencies:
@@ -1691,10 +1702,8 @@ firebase@^4.2.0:
     xmlhttprequest "^1.8.0"
 
 follow-redirects@^1.2.3:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.2.4.tgz#355e8f4d16876b43f577b0d5ce2668b9723214ea"
-  dependencies:
-    debug "^2.4.5"
+  version "1.14.8"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.8.tgz#016996fb9a11a100566398b1c6839337d7bfa8fc"
 
 for-in@^1.0.1:
   version "1.0.2"
@@ -1998,6 +2007,10 @@ iconv-lite@^0.4.17, iconv-lite@~0.4.13:
   version "0.4.18"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.18.tgz#23d8656b16aae6742ac29732ea8f0336a4789cf2"
 
+ieee754@^1.1.13:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
+
 image-size@^0.3.5:
   version "0.3.5"
   resolved "https://registry.yarnpkg.com/image-size/-/image-size-0.3.5.tgz#83240eab2fb5b00b04aab8c74b0471e9cba7ad8c"
@@ -3434,6 +3447,10 @@ qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
 
+querystring@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.1.tgz#40d77615bb09d16902a85c3e38aa8b5ed761c2dd"
+
 raf@^3.1.0:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/raf/-/raf-3.3.2.tgz#0c13be0b5b49b46f76d6669248d527cf2b02fe27"