diff --git a/yarn.lock b/yarn.lock
index fa9b68c9..c77ca79e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5920,11 +5920,16 @@ bser@2.1.1:
   dependencies:
     node-int64 "^0.4.0"
 
-buffer-from@1.x, buffer-from@^1.0.0:
+buffer-from@1.x:
   version "1.1.1"
   resolved "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz"
   integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
 
+buffer-from@^1.0.0:
+  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-xor@^1.0.3:
   version "1.0.3"
   resolved "https://registry.npmjs.org/buffer-xor/-/buffer-xor-1.0.3.tgz"
@@ -18379,9 +18384,9 @@ source-map-support@^0.4.15:
     source-map "^0.5.6"
 
 source-map-support@^0.5.16, source-map-support@^0.5.6, source-map-support@~0.5.12:
-  version "0.5.19"
-  resolved "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz"
-  integrity sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==
+  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"
@@ -19187,9 +19192,9 @@ terser-webpack-plugin@^2.1.2:
     webpack-sources "^1.4.3"
 
 terser@^4.1.2, terser@^4.4.3, terser@^4.6.3:
-  version "4.6.12"
-  resolved "https://registry.npmjs.org/terser/-/terser-4.6.12.tgz"
-  integrity sha512-fnIwuaKjFPANG6MAixC/k1TDtnl1YlPLUlLVIxxGZUn1gfUx2+l3/zGNB72wya+lgsb50QBi2tUV75RiODwnww==
+  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"