diff --git a/CHANGELOG.md b/CHANGELOG.md
index 577b4a979515..454fb6ead0f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,8 +2,9 @@
 
 BUG FIXES:
 
-* data-source/aws_cognito_user_pool_client: Fix `InvalidParameterException: 2 validation errors detected`  errors on Read ([#38168](https://github.com/hashicorp/terraform-provider-aws/issues/38168))
+* data-source/aws_cognito_user_pool_client: Fix `InvalidParameterException: 2 validation errors detected` errors on Read ([#38168](https://github.com/hashicorp/terraform-provider-aws/issues/38168))
 * resource/aws_cognito_user: Fix a bug that caused resource recreation for resources imported with certain [import ID](https://developer.hashicorp.com/terraform/language/import#import-id) formats ([#38182](https://github.com/hashicorp/terraform-provider-aws/issues/38182))
+* resource/aws_cognito_user_pool: Fix `runtime error: index out of range [0] with length 0` panic when adding `lambda_config` ([#38184](https://github.com/hashicorp/terraform-provider-aws/issues/38184))
 
 ## 5.56.0 (June 27, 2024)