diff --git a/build/package.json b/build/package.json
index 20fc702f97d0d..f8fc6aa7f9298 100644
--- a/build/package.json
+++ b/build/package.json
@@ -47,7 +47,7 @@
     "minimatch": "3.0.4",
     "minimist": "^1.2.3",
     "request": "^2.85.0",
-    "terser": "4.3.8",
+    "terser": "4.8.1",
     "typescript": "^4.2.0-dev.20201119",
     "vsce": "1.48.0",
     "vscode-telemetry-extractor": "^1.6.0",
diff --git a/build/yarn.lock b/build/yarn.lock
index 17c5c201d57f7..725ba7816f899 100644
--- a/build/yarn.lock
+++ b/build/yarn.lock
@@ -888,16 +888,11 @@ command-line-args@^5.1.1:
     lodash.camelcase "^4.3.0"
     typical "^4.0.0"
 
-commander@^2.20.0, commander@~2.20.0:
+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==
 
-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==
-
 compare-version@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/compare-version/-/compare-version-0.1.2.tgz#0162ec2d9351f5ddd59a9202cba935366a725080"
@@ -3087,19 +3082,10 @@ supports-color@^2.0.0:
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
   integrity sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=
 
-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"