diff --git a/CHANGELOG.md b/CHANGELOG.md
index da1d503..27444b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - `one_compartment` compartment macro function to the `pysb.pkpd.macros` module.
 - `drug_monomer` macro function to the `pysb.pkpd.macros` module.
 - Functions from the `macros` module are imported into `pkpd.__init__` so that they can be called directly from the `pkpd` namespace. 
+- `example-notebooks` directory with a new PKRO example case. 
 
 ## [0.1.0] - 2023-05-23