diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70e38333..536679ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - PySTAC Client specific warnings [#480](https://github.com/stac-utils/pystac-client/pull/480)
 - Support for fetching and merging a selection of queryables [#511](https://github.com/stac-utils/pystac-client/pull/511)
 - Better error messages for the CLI [#531](https://github.com/stac-utils/pystac-client/pull/531)
+- `Modifiable` to our public API [#534](https://github.com/stac-utils/pystac-client/pull/534)
 
 ### Changed
 
diff --git a/pystac_client/__init__.py b/pystac_client/__init__.py
index b04c5bae..68e2a0fb 100644
--- a/pystac_client/__init__.py
+++ b/pystac_client/__init__.py
@@ -3,9 +3,11 @@
     "CollectionClient",
     "ConformanceClasses",
     "ItemSearch",
+    "Modifiable",
     "__version__",
 ]
 
+from pystac_client._utils import Modifiable
 from pystac_client.client import Client
 from pystac_client.collection_client import CollectionClient
 from pystac_client.conformance import ConformanceClasses