diff --git a/CHANGELOG.md b/CHANGELOG.md
index a9bbe8b7c88..7d9adbc91da 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ ENHANCEMENTS:
 * resource/aws_codebuild_project: Add `badge_enabled` argument and `badge_url` attribute [GH-3504]
 * resource/aws_codebuild_project: Add `environment_variable` argument `type` (support parameter store environment variables) [GH-2811] / [GH-4021]
 * resource/aws_codebuild_project: Add `source` argument `git_clone_depth` and `insecure_ssl` [GH-3929]
+* resource/aws_elasticache_replication_group: Support `number_cache_nodes` updates [GH-4504]
 * resource/aws_redshift_cluster: Add `dns_name` attribute [GH-4582]
 
 BUG FIXES: