diff --git a/yarn.lock b/yarn.lock
index 8933de6..95b2b7e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -738,8 +738,8 @@ browserslist@^4.6.0, browserslist@^4.6.2:
     node-releases "^1.1.25"
 
 buffer-from@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.npmjs.org/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"
 
 builtin-modules@^3.1.0:
   version "3.1.0"
@@ -824,8 +824,8 @@ color-name@1.1.3:
   resolved "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
 commander@^2.20.0, commander@^2.8.1:
-  version "2.20.0"
-  resolved "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz#d58bb2b5c1ee8f87b0d340027e9e94e222c5a422"
+  version "2.20.3"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
 
 component-emitter@^1.2.1:
   version "1.3.0"
@@ -1861,8 +1861,8 @@ source-map-resolve@^0.5.0:
     urix "^0.1.0"
 
 source-map-support@~0.5.12:
-  version "0.5.13"
-  resolved "https://registry.npmjs.org/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"
@@ -1877,7 +1877,7 @@ source-map@^0.5.0, source-map@^0.5.6:
 
 source-map@^0.6.0, source-map@~0.6.1:
   version "0.6.1"
-  resolved "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
 
 sourcemap-codec@^1.4.4:
   version "1.4.6"
@@ -1958,8 +1958,8 @@ tar@^4:
     yallist "^3.0.3"
 
 terser@^4.1.0:
-  version "4.2.1"
-  resolved "https://registry.npmjs.org/terser/-/terser-4.2.1.tgz#1052cfe17576c66e7bc70fcc7119f22b155bdac1"
+  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"