diff --git a/jest.config.js b/jest.config.js
index d27210d..1d8f049 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -6,21 +6,14 @@ module.exports = {
   coverageDirectory: 'coverage',
 
   // An array of regexp pattern strings used to skip coverage collection
-  coveragePathIgnorePatterns: [
-    '/node_modules/',
-    '/test/',
-  ],
+  coveragePathIgnorePatterns: ['/node_modules/', '/test/'],
 
   // A list of reporter names that Jest uses when writing coverage reports
-  coverageReporters: [
-    'text',
-    'lcov',
-  ],
+  coverageReporters: ['text', 'lcov'],
 
   // An array of regexp pattern strings that are matched against all test paths,
   // matched tests are skipped
-  testPathIgnorePatterns: [
-    '<rootDir>/gulp/',
-    '/node_modules/',
-  ],
+  testPathIgnorePatterns: ['<rootDir>/gulp/', '/node_modules/'],
+
+  testEnvironment: 'jsdom',
 };
diff --git a/package.json b/package.json
index 522459a..5eb6728 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
     "gulp-postcss": "^9.0.0",
     "gulp-sass": "^4.0.0",
     "gulp-shell": "^0.8.0",
-    "jest": "^26.1.0",
+    "jest": "^27.0.3",
     "postcss": "^8.2.8",
     "rollup": "^2.2.0",
     "rollup-plugin-terser": "^7.0.0",