diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3e4f7caa..be01b1ac8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [1.0.1] - 2023-04-14
+- HOTFIX to update the NDLP routine immunization required metadata fields to include meta_ext_submissionperiod
+
 ## [1.0.0] - 2023-04-04
 - Created pre-create tus hook and associated JSON configuration files to support program and event specific metadata validation checks before an upload can proceed
 - Created an Azure Function app for supporting bulk file uploads, whose purpose is to combine the tus payload and info files, copy the resultant combined blob file to DEX and EDAV storage accounts