diff --git a/config/jest/jest.unit.config.js b/config/jest/jest.unit.config.js
index 5563a80de059..2a8ac9169ba8 100644
--- a/config/jest/jest.unit.config.js
+++ b/config/jest/jest.unit.config.js
@@ -7,11 +7,13 @@ module.exports = {
     '**/test/unit/*.js?(x)',
     '**/test/unit/**/*.js?(x)',
   ],
+  setupFiles: ['<rootDir>/test/unit/jest-shim.js'],
   setupFilesAfterEnv: ['<rootDir>/test/unit/setup.js'],
   testPathIgnorePatterns: [
     '<rootDir>/node_modules/',
     '<rootDir>/test/build-artifacts/',
     '<rootDir>/test/mocha',
+    '<rootDir>/test/unit/jest-shim.js',
     '<rootDir>/test/unit/setup.js',
     '<rootDir>/test/unit/xss/anchor-target-rel/online-validator-badge.jsx',
     '<rootDir>/test/unit/components/online-validator-badge.jsx',
diff --git a/test/unit/jest-shim.js b/test/unit/jest-shim.js
new file mode 100644
index 000000000000..26efea0c01bc
--- /dev/null
+++ b/test/unit/jest-shim.js
@@ -0,0 +1,4 @@
+import { TextDecoder, TextEncoder } from "util"
+
+global.TextDecoder = TextDecoder
+global.TextEncoder = TextEncoder
diff --git a/test/unit/setup.js b/test/unit/setup.js
index 0ac610c5e831..db6e23bce625 100644
--- a/test/unit/setup.js
+++ b/test/unit/setup.js
@@ -24,8 +24,6 @@ function setUpDomEnvironment() {
 
   global.window = window
   global.document = window.document
-  global.TextEncoder = window.TextEncoder
-  global.TextDecoder = window.TextDecoder
   global.navigator = {
     userAgent: "node.js",
   }