diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3057edecd..cd772ea608 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,7 @@ IMPROVEMENTS:
 BUG FIXES:
 
   * core: skip provider input for deprecated fields [GH-4193]
+  * core: Fix issue which could cause fields that become empty to retain old values in the state [GH-3257]
   * provider/docker: Fix an issue running with Docker Swarm by looking up containers by ID instead of name [GH-4148]
   * provider/openstack: Better handling of load balancing resource state changes [GH-3926]
   * provider/aws: Skip `source_security_group_id` determination logic for Classic ELBs [GH-4075]