diff --git a/package.json b/package.json
index 6c165770d..d6ed58ca4 100644
--- a/package.json
+++ b/package.json
@@ -157,7 +157,7 @@
     "stacktrace-js": "^2.0.2",
     "stringz": "^2.1.0",
     "substring-trie": "^1.0.2",
-    "terser-webpack-plugin": "^3.0.6",
+    "terser-webpack-plugin": "^4.2.2",
     "tesseract.js": "^2.1.1",
     "throng": "^4.0.0",
     "tiny-queue": "^0.2.1",
diff --git a/yarn.lock b/yarn.lock
index e4b126be1..e0e24a1bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2577,7 +2577,7 @@ cacache@^12.0.2:
     unique-filename "^1.1.1"
     y18n "^4.0.0"
 
-cacache@^15.0.4, cacache@^15.0.5:
+cacache@^15.0.5:
   version "15.0.5"
   resolved "https://registry.yarnpkg.com/cacache/-/cacache-15.0.5.tgz#69162833da29170d6732334643c60e005f5f17d0"
   integrity sha512-lloiL22n7sOjEEXdL8NAjTgv9a1u43xICE9/203qonkZUCj5X1UEWIdf2/Y0d6QcCtMzbKQyhrcDbdvlZTs/+A==
@@ -6359,7 +6359,7 @@ jest-watcher@^26.3.0:
     jest-util "^26.3.0"
     string-length "^4.0.1"
 
-jest-worker@^26.0.0, jest-worker@^26.3.0:
+jest-worker@^26.3.0:
   version "26.3.0"
   resolved "https://registry.yarnpkg.com/jest-worker/-/jest-worker-26.3.0.tgz#7c8a97e4f4364b4f05ed8bca8ca0c24de091871f"
   integrity sha512-Vmpn2F6IASefL+DVBhPzI2J9/GJUsqzomdeN+P+dK8/jKxbh8R3BtFnx3FIta7wYlPU62cpJMJQo4kuOowcMnw==
@@ -7550,10 +7550,10 @@ p-limit@^2.0.0, p-limit@^2.2.0:
   dependencies:
     p-try "^2.0.0"
 
-p-limit@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-3.0.1.tgz#584784ac0722d1aed09f19f90ed2999af6ce2839"
-  integrity sha512-mw/p92EyOzl2MhauKodw54Rx5ZK4624rNfgNaBguFZkHzyUG9WsDzFF5/yQVEJinbJDdP4jEfMN+uBquiGnaLg==
+p-limit@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-3.0.2.tgz#1664e010af3cadc681baafd3e2a437be7b0fb5fe"
+  integrity sha512-iwqZSOoWIW+Ew4kAGUlN16J4M7OB3ysMLSZtnhmqx7njIHFPlxWBX8xo3lVTyFVq6mI/lL9qt2IsN1sHwaxJkg==
   dependencies:
     p-try "^2.0.0"
 
@@ -9395,7 +9395,7 @@ schema-utils@^1.0.0:
     ajv-errors "^1.0.0"
     ajv-keywords "^3.1.0"
 
-schema-utils@^2.2.0, schema-utils@^2.6.5, schema-utils@^2.6.6, schema-utils@^2.7.0, schema-utils@^2.7.1:
+schema-utils@^2.2.0, schema-utils@^2.6.5, schema-utils@^2.7.0, schema-utils@^2.7.1:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-2.7.1.tgz#1ca4f32d1b24c590c203b8e7a50bf0ea4cd394d7"
   integrity sha512-SHiNtMOUGWBQJwzISiVYKu82GiV4QYGePp3odlY1tuKO7gPtphAT5R/py0fA6xtbgLL/RvtJZnU9b8s0F1q0Xg==
@@ -9480,6 +9480,13 @@ serialize-javascript@^4.0.0:
   dependencies:
     randombytes "^2.1.0"
 
+serialize-javascript@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-5.0.1.tgz#7886ec848049a462467a97d3d918ebb2aaf934f4"
+  integrity sha512-SaaNal9imEO737H2c05Og0/8LUXG7EnsZyMa8MzkmuHoELfT6txuj0cMqRj6zfPKnmQ1yasR4PCJc8x+M4JSPA==
+  dependencies:
+    randombytes "^2.1.0"
+
 serve-index@^1.9.1:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/serve-index/-/serve-index-1.9.1.tgz#d3768d69b1e7d82e5ce050fff5b453bea12a9239"
@@ -10250,22 +10257,22 @@ terser-webpack-plugin@^1.4.3:
     webpack-sources "^1.4.0"
     worker-farm "^1.7.0"
 
-terser-webpack-plugin@^3.0.6:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-3.0.6.tgz#db0a108bbdd3680d72c9b491fbabad09ba207b99"
-  integrity sha512-z3HLOOPUHkCNGkeEHqqiMAIy1pjpHwS1o+i6Zn0Ws3EAvHJj46737efNNEvJ0Vx9BdDQM83d56qySDJOSORA0A==
+terser-webpack-plugin@^4.2.2:
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-4.2.2.tgz#d86200c700053bba637913fe4310ba1bdeb5568e"
+  integrity sha512-3qAQpykRTD5DReLu5/cwpsg7EZFzP3Q0Hp2XUWJUw2mpq2jfgOKTZr8IZKKnNieRVVo1UauROTdhbQJZveGKtQ==
   dependencies:
-    cacache "^15.0.4"
+    cacache "^15.0.5"
     find-cache-dir "^3.3.1"
-    jest-worker "^26.0.0"
-    p-limit "^3.0.1"
-    schema-utils "^2.6.6"
-    serialize-javascript "^4.0.0"
+    jest-worker "^26.3.0"
+    p-limit "^3.0.2"
+    schema-utils "^2.7.1"
+    serialize-javascript "^5.0.1"
     source-map "^0.6.1"
-    terser "^4.8.0"
+    terser "^5.3.2"
     webpack-sources "^1.4.3"
 
-terser@^4.1.2, terser@^4.8.0:
+terser@^4.1.2:
   version "4.8.0"
   resolved "https://registry.yarnpkg.com/terser/-/terser-4.8.0.tgz#63056343d7c70bb29f3af665865a46fe03a0df17"
   integrity sha512-EAPipTNeWsb/3wLPeup1tVPaXfIaU68xMnVdPafIL1TV05OhASArYyIfFvnvJCNrR2NIOvDVNNTFRa+Re2MWyw==
@@ -10274,6 +10281,15 @@ terser@^4.1.2, terser@^4.8.0:
     source-map "~0.6.1"
     source-map-support "~0.5.12"
 
+terser@^5.3.2:
+  version "5.3.2"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-5.3.2.tgz#f4bea90eb92945b2a028ceef79181b9bb586e7af"
+  integrity sha512-H67sydwBz5jCUA32ZRL319ULu+Su1cAoZnnc+lXnenGRYWyLE3Scgkt8mNoAsMx0h5kdo758zdoS0LG9rYZXDQ==
+  dependencies:
+    commander "^2.20.0"
+    source-map "~0.6.1"
+    source-map-support "~0.5.12"
+
 tesseract.js-core@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/tesseract.js-core/-/tesseract.js-core-2.2.0.tgz#6ef78051272a381969fac3e45a226e85022cffef"