diff --git a/CHANGELOG.md b/CHANGELOG.md
index a0f53568..542ccd53 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+## [v1.5.0](https://github.com/allenai/OLMo-core/releases/tag/v1.5.0) - 2024-10-23
+
 ### Added
 
 - Added Google Cloud support for `list_directory()` and `clear_directory()`.
diff --git a/src/olmo_core/version.py b/src/olmo_core/version.py
index b1d849a9..0cd17e57 100644
--- a/src/olmo_core/version.py
+++ b/src/olmo_core/version.py
@@ -1,6 +1,6 @@
 _MAJOR = "1"
-_MINOR = "4"
-_PATCH = "1"
+_MINOR = "5"
+_PATCH = "0"
 _SUFFIX = ""
 
 VERSION_SHORT = "{0}.{1}".format(_MAJOR, _MINOR)