diff --git a/CHANGELOG.md b/CHANGELOG.md
index 10893f07c..cfe3402e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.0.1](https://github.com/googleapis/python-genai/compare/v2.0.0...v2.0.1) (2026-05-09)
+
+
+### Bug Fixes
+
+* Update response_format field names to snake_case. ([97142b1](https://github.com/googleapis/python-genai/commit/97142b11fa71ccb5b6b844662db5d4478a50da4c))
+
 ## [2.0.0](https://github.com/googleapis/python-genai/compare/v1.75.0...v2.0.0) (2026-05-07)
 
 
diff --git a/google/genai/version.py b/google/genai/version.py
index b23175b9b..cb189056a 100644
--- a/google/genai/version.py
+++ b/google/genai/version.py
@@ -13,4 +13,4 @@
 # limitations under the License.
 #
 
-__version__ = '2.0.0' # x-release-please-version
+__version__ = '2.0.1' # x-release-please-version
diff --git a/pyproject.toml b/pyproject.toml
index de8ff0a1a..c1ec1d5ab 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = ["setuptools", "wheel", "twine>=6.1.0", "packaging>=24.2", "pkginfo>=
 
 [project]
 name = "google-genai"
-version = "2.0.0"
+version = "2.0.1"
 description = "GenAI Python SDK"
 readme = "README.md"
 license = "Apache-2.0"