diff --git a/build/package.json b/build/package.json
index a685a901b88c2..8fbb98303b735 100644
--- a/build/package.json
+++ b/build/package.json
@@ -38,7 +38,7 @@
     "mime": "^1.3.4",
     "minimist": "^1.2.0",
     "request": "^2.85.0",
-    "terser": "4.3.8",
+    "terser": "4.8.1",
     "tslint": "^5.9.1",
     "typescript": "3.7.2",
     "vsce": "1.48.0",
diff --git a/build/yarn.lock b/build/yarn.lock
index 36f6c025d487c..543af51296db9 100644
--- a/build/yarn.lock
+++ b/build/yarn.lock
@@ -672,12 +672,7 @@ command-line-args@^5.1.1:
     lodash.camelcase "^4.3.0"
     typical "^4.0.0"
 
-commander@^2.12.1, commander@^2.8.1:
-  version "2.19.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
-  integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
-
-commander@^2.20.0, commander@~2.20.0:
+commander@^2.12.1, commander@^2.20.0, commander@^2.8.1, commander@~2.20.0:
   version "2.20.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.0.tgz#d58bb2b5c1ee8f87b0d340027e9e94e222c5a422"
   integrity sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==
@@ -2308,19 +2303,10 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
-terser@*:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-4.2.1.tgz#1052cfe17576c66e7bc70fcc7119f22b155bdac1"
-  integrity sha512-cGbc5utAcX4a9+2GGVX4DsenG6v0x3glnDi5hx8816X1McEAwPlPgRtXPJzSBsbpILxZ8MQMT0KvArLuE0HP5A==
-  dependencies:
-    commander "^2.20.0"
-    source-map "~0.6.1"
-    source-map-support "~0.5.12"
-
-terser@4.3.8:
-  version "4.3.8"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-4.3.8.tgz#707f05f3f4c1c70c840e626addfdb1c158a17136"
-  integrity sha512-otmIRlRVmLChAWsnSFNO0Bfk6YySuBp6G9qrHiJwlLDd4mxe2ta4sjI7TzIR+W1nBMjilzrMcPOz9pSusgx3hQ==
+terser@*, terser@4.8.1:
+  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"