code-like-a-carpenter
diff --git a/‎examples/subscription-webhooks/__generated__/cdc.yml
+1 b/‎examples/subscription-webhooks/__generated__/cdc.yml
+1
diff --git a/‎examples/subscription-webhooks/__generated__/dispatcher.yml
+1 b/‎examples/subscription-webhooks/__generated__/dispatcher.yml
+1
diff --git a/‎packages/@code-like-a-carpenter/foundation-plugin-cloudformation/src/stacks/dispatcher.ts
+1 b/‎packages/@code-like-a-carpenter/foundation-plugin-cloudformation/src/stacks/dispatcher.ts
+1
diff --git a/‎packages/@code-like-a-carpenter/foundation-plugin-cloudformation/src/stacks/handler.ts
+1 b/‎packages/@code-like-a-carpenter/foundation-plugin-cloudformation/src/stacks/handler.ts
+1
@@ -26,6 +26,7 @@ export function makeDispatcherStack(
       buildProperties: {
         EntryPoints: ['./index'],
         External: config.buildProperties.external,
+        Format: 'esm',
         Minify: config.buildProperties.minify,
         Sourcemap: config.buildProperties.sourcemap,
         Target: config.buildProperties.target,
 
@@ -57,6 +57,7 @@ export function makeHandlerStack(config: Config): ServerlessApplicationModel {
       BuildProperties: {
         EntryPoints: ['./index'],
         External: config.buildProperties.external,
+        Format: 'esm',
         Minify: config.buildProperties.minify,
         Sourcemap: config.buildProperties.sourcemap,
         Target: config.buildProperties.target,