diff --git a/readme.md b/readme.md
index 2c8305f..ca27665 100644
--- a/readme.md
+++ b/readme.md
@@ -20,7 +20,9 @@ module.exports = {
 
 ### 2. Create `jest-dynamodb-config.js`
 
-See [Create Table API](https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB.html#createTable-property)
+See [Create Table API](https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB.html#createTable-property).
+
+You can set up tables as an object:
 
 ```js
 module.exports = {
@@ -37,6 +39,23 @@ module.exports = {
 };
 ```
 
+Or as an async function (particularly useful when resolving DynamoDB setup dynamically from `serverless.yml`):
+
+```js
+module.exports = async () => {
+  await serverless.init();
+  const service = await serverless.variables.populateService();
+  const tables = service.resources.Resources.filter(r => r.Type === 'AWS::DynamoDB::Table').map(
+    r => r.Properties
+  );
+
+  return {
+    tables,
+    port: 8000
+  };
+};
+```
+
 ### 3. Configure DynamoDB client
 
 ```js
diff --git a/setup.js b/setup.js
index f1e6af4..550e80d 100644
--- a/setup.js
+++ b/setup.js
@@ -25,7 +25,8 @@ module.exports = async function() {
 };
 
 async function createTables() {
-  const {tables} = require(resolve(cwd(), 'jest-dynamodb-config.js'));
+  const config = require(resolve(cwd(), 'jest-dynamodb-config.js'));
+  const {tables} = typeof config === 'function' ? await config() : config;
 
   return Promise.all(tables.map(table => dynamoDB.createTable(table).promise()));
 }