diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index a713055..d52d2b9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.12.0"
+  ".": "0.13.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ae1991..3e8eb6f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.13.0 (2024-01-12)
+
+Full Changelog: [v0.12.0...v0.13.0](https://github.com/Dataherald/dataherald-python/compare/v0.12.0...v0.13.0)
+
+### Features
+
+* **api:** OpenAPI spec update ([#26](https://github.com/Dataherald/dataherald-python/issues/26)) ([e4f11da](https://github.com/Dataherald/dataherald-python/commit/e4f11da1d79172307e9f9ecbdb3d8984df07a6d8))
+
 ## 0.12.0 (2024-01-10)
 
 Full Changelog: [v0.11.0...v0.12.0](https://github.com/Dataherald/dataherald-python/compare/v0.11.0...v0.12.0)
diff --git a/pyproject.toml b/pyproject.toml
index 590f49d..698056c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "dataherald"
-version = "0.12.0"
+version = "0.13.0"
 description = "The official Python library for the Dataherald API"
 readme = "README.md"
 license = "Apache-2.0"
diff --git a/src/dataherald/_version.py b/src/dataherald/_version.py
index 2d1df49..ac42b3e 100644
--- a/src/dataherald/_version.py
+++ b/src/dataherald/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless.
 
 __title__ = "dataherald"
-__version__ = "0.12.0"  # x-release-please-version
+__version__ = "0.13.0"  # x-release-please-version