diff --git a/jest.config.js b/jest.config.js
new file mode 100644
index 0000000..95c12aa
--- /dev/null
+++ b/jest.config.js
@@ -0,0 +1,5 @@
+module.exports = {
+  transformIgnorePatterns: [
+    '/node_modules/(?!esn-api-client).+\\.js$'
+  ]
+};