diff --git a/CHANGELOG.md b/CHANGELOG.md
index a48d021b0..b321b5a40 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 IMPROVEMENTS:
 
+  * builder/amazon: Dynamic source AMI [GH-3817]
   * builder/googlecompute: Support custom scopes. [GH-4043]
   * provisioner/puppet: Add `puppet_bin_dir` option. [GH-4014]