diff --git a/yarn.lock b/yarn.lock
index a6a5518..13c7e9e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1554,8 +1554,8 @@ browserslist@^3.2.6, browserslist@^3.2.8:
     electron-to-chromium "^1.3.47"
 
 buffer-from@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.2.tgz#2b146a6fd72e80b4f55d255f35ed59a3a9a41bd5"
 
 buffer-indexof@^1.0.0:
   version "1.1.1"
@@ -1934,8 +1934,8 @@ commander@2.17.x:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
 
 commander@^2.20.0, commander@~2.20.0:
-  version "2.20.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.0.tgz#d58bb2b5c1ee8f87b0d340027e9e94e222c5a422"
+  version "2.20.3"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
 
 commander@~2.13.0:
   version "2.13.0"
@@ -6702,8 +6702,8 @@ source-map-support@^0.4.15:
     source-map "^0.5.6"
 
 source-map-support@~0.5.12:
-  version "0.5.13"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.13.tgz#31b24a9c2e73c2de85066c0feb7d44767ed52932"
+  version "0.5.21"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.21.tgz#04fe7c7f9e1ed2d662233c28cb2b35b9f63f6e4f"
   dependencies:
     buffer-from "^1.0.0"
     source-map "^0.6.0"
@@ -7167,8 +7167,8 @@ terser-webpack-plugin@^1.1.0:
     worker-farm "^1.7.0"
 
 terser@^4.1.2:
-  version "4.1.4"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-4.1.4.tgz#4478b6a08bb096a61e793fea1a4434408bab936c"
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-4.8.1.tgz#a00e5634562de2239fd404c649051bf6fc21144f"
   dependencies:
     commander "^2.20.0"
     source-map "~0.6.1"