diff --git a/yarn.lock b/yarn.lock
index 6bc4081..67fe83f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2520,9 +2520,9 @@ bser@2.1.1:
     node-int64 "^0.4.0"
 
 buffer-from@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
-  integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.2.tgz#2b146a6fd72e80b4f55d255f35ed59a3a9a41bd5"
+  integrity sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==
 
 buffer-indexof@^1.0.0:
   version "1.1.1"
@@ -4103,24 +4103,6 @@ escodegen@^1.11.0, escodegen@^1.9.1:
   optionalDependencies:
     source-map "~0.6.1"
 
-eslint-config-airbnb-base@^14.1.0:
-  version "14.1.0"
-  resolved "https://registry.yarnpkg.com/eslint-config-airbnb-base/-/eslint-config-airbnb-base-14.1.0.tgz#2ba4592dd6843258221d9bff2b6831bd77c874e4"
-  integrity sha512-+XCcfGyCnbzOnktDVhwsCAx+9DmrzEmuwxyHUJpw+kqBVT744OUBrB09khgFKlK1lshVww6qXGsYPZpavoNjJw==
-  dependencies:
-    confusing-browser-globals "^1.0.9"
-    object.assign "^4.1.0"
-    object.entries "^1.1.1"
-
-eslint-config-airbnb@^18.1.0:
-  version "18.1.0"
-  resolved "https://registry.yarnpkg.com/eslint-config-airbnb/-/eslint-config-airbnb-18.1.0.tgz#724d7e93dadd2169492ff5363c5aaa779e01257d"
-  integrity sha512-kZFuQC/MPnH7KJp6v95xsLBf63G/w7YqdPfQ0MUanxQ7zcKUNG8j+sSY860g3NwCBOa62apw16J6pRN+AOgXzw==
-  dependencies:
-    eslint-config-airbnb-base "^14.1.0"
-    object.assign "^4.1.0"
-    object.entries "^1.1.1"
-
 eslint-config-react-app@^5.2.1:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/eslint-config-react-app/-/eslint-config-react-app-5.2.1.tgz#698bf7aeee27f0cea0139eaef261c7bf7dd623df"
@@ -10330,9 +10312,9 @@ source-map-resolve@^0.5.0, source-map-resolve@^0.5.2:
     urix "^0.1.0"
 
 source-map-support@^0.5.6, source-map-support@~0.5.12:
-  version "0.5.16"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.16.tgz#0ae069e7fe3ba7538c64c98515e35339eac5a042"
-  integrity sha512-efyLRJDr68D9hBBNIPWFjhpFzURh+KJykQwvMyW5UiZzYwoF6l4YMMDIJJEyFWxWCqfyxLzz6tSfUFR+kXXsVQ==
+  version "0.5.21"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.21.tgz#04fe7c7f9e1ed2d662233c28cb2b35b9f63f6e4f"
+  integrity sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==
   dependencies:
     buffer-from "^1.0.0"
     source-map "^0.6.0"
@@ -10868,9 +10850,9 @@ terser-webpack-plugin@^1.4.3:
     worker-farm "^1.7.0"
 
 terser@^4.1.2, terser@^4.4.3, terser@^4.6.3:
-  version "4.6.11"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-4.6.11.tgz#12ff99fdd62a26de2a82f508515407eb6ccd8a9f"
-  integrity sha512-76Ynm7OXUG5xhOpblhytE7X58oeNSmC8xnNhjWVo8CksHit0U0kO4hfNbPrrYwowLWFgM2n9L176VNx2QaHmtA==
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-4.8.1.tgz#a00e5634562de2239fd404c649051bf6fc21144f"
+  integrity sha512-4GnLC0x667eJG0ewJTa6z/yXrbLGv80D9Ru6HIpCQmO+Q4PfEtBFi0ObSckqwL6VyQv/7ENJieXHo2ANmdQwgw==
   dependencies:
     commander "^2.20.0"
     source-map "~0.6.1"