diff --git a/.mocharc.json b/.mocharc.json
new file mode 100644
index 000000000..3758cbd57
--- /dev/null
+++ b/.mocharc.json
@@ -0,0 +1,8 @@
+{
+  "extensions": ["ts"],
+  "spec": ["ts/client/src/**/*.spec.*"],
+  "node-option": [
+    "experimental-specifier-resolution=node",
+    "loader=ts-node/esm"
+  ]
+}