diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2548a6e35d9..65734262d4f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,16 +4,26 @@
 <a name="unreleased"></a>
 # Unreleased
 
+## Bug Fixes
+
+* **event_handler:** custom serializer recursive values when using data validation ([#4664](https://github.com/aws-powertools/powertools-lambda-python/issues/4664))
+
 ## Maintenance
 
 * **ci:** new pre-release 2.40.2a0 ([#4665](https://github.com/aws-powertools/powertools-lambda-python/issues/4665))
+* **ci:** new pre-release 2.40.2a1 ([#4669](https://github.com/aws-powertools/powertools-lambda-python/issues/4669))
 * **deps:** bump the layer-balancer group in /layer/scripts/layer-balancer with 3 updates ([#4659](https://github.com/aws-powertools/powertools-lambda-python/issues/4659))
-* **deps-dev:** bump aws-cdk-aws-lambda-python-alpha from 2.147.1a0 to 2.147.2a0 ([#4667](https://github.com/aws-powertools/powertools-lambda-python/issues/4667))
+* **deps:** bump zgosalvez/github-actions-ensure-sha-pinned-actions from 3.0.9 to 3.0.10 ([#4678](https://github.com/aws-powertools/powertools-lambda-python/issues/4678))
+* **deps-dev:** bump cdklabs-generative-ai-cdk-constructs from 0.1.198 to 0.1.199 ([#4668](https://github.com/aws-powertools/powertools-lambda-python/issues/4668))
+* **deps-dev:** bump mypy-boto3-s3 from 1.34.120 to 1.34.138 in the boto-typing group ([#4673](https://github.com/aws-powertools/powertools-lambda-python/issues/4673))
+* **deps-dev:** bump aws-cdk from 2.147.2 to 2.147.3 ([#4672](https://github.com/aws-powertools/powertools-lambda-python/issues/4672))
+* **deps-dev:** bump cfn-lint from 1.4.1 to 1.4.2 ([#4660](https://github.com/aws-powertools/powertools-lambda-python/issues/4660))
 * **deps-dev:** bump aws-cdk-lib from 2.147.1 to 2.147.2 ([#4661](https://github.com/aws-powertools/powertools-lambda-python/issues/4661))
+* **deps-dev:** bump aws-cdk-aws-lambda-python-alpha from 2.147.1a0 to 2.147.2a0 ([#4667](https://github.com/aws-powertools/powertools-lambda-python/issues/4667))
 * **deps-dev:** bump aws-cdk from 2.147.1 to 2.147.2 ([#4657](https://github.com/aws-powertools/powertools-lambda-python/issues/4657))
 * **deps-dev:** bump ruff from 0.4.10 to 0.5.0 ([#4644](https://github.com/aws-powertools/powertools-lambda-python/issues/4644))
-* **deps-dev:** bump cdklabs-generative-ai-cdk-constructs from 0.1.198 to 0.1.199 ([#4668](https://github.com/aws-powertools/powertools-lambda-python/issues/4668))
-* **deps-dev:** bump cfn-lint from 1.4.1 to 1.4.2 ([#4660](https://github.com/aws-powertools/powertools-lambda-python/issues/4660))
+* **deps-dev:** bump cdklabs-generative-ai-cdk-constructs from 0.1.199 to 0.1.200 ([#4677](https://github.com/aws-powertools/powertools-lambda-python/issues/4677))
+* **deps-dev:** bump mkdocs-material from 9.5.27 to 9.5.28 ([#4676](https://github.com/aws-powertools/powertools-lambda-python/issues/4676))
 
 
 <a name="v2.40.1"></a>