diff --git a/jest.config.js b/jest.config.js
index 6966b1e..8182132 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -11,5 +11,8 @@ module.exports = {
 	testEnvironment: 'node',
 	coverageDirectory: 'coverage',
 	collectCoverageFrom: ['index.js', 'lib/**/*.js'],
-	setupFilesAfterEnv: ['jest-extended/all']
+	setupFilesAfterEnv: ['jest-extended/all'],
+	// Jest by default uses a number of workers equal to number of CPU cores minus 1.
+	// Github Actions runners provide 2 cores and running with 2 workers is faster than 1.
+	...(process.env.CI && {maxWorkers: '100%'})
 };