diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5930e463f4..01acf4e21a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-spanner/#history
 
+## [3.9.0](https://www.github.com/googleapis/python-spanner/compare/v3.8.0...v3.9.0) (2021-08-26)
+
+
+### Features
+
+* add support for JSON type ([#353](https://www.github.com/googleapis/python-spanner/issues/353)) ([b1dd04d](https://www.github.com/googleapis/python-spanner/commit/b1dd04d89df6339a9624378c31f9ab26a6114a54))
+
 ## [3.8.0](https://www.github.com/googleapis/python-spanner/compare/v3.7.0...v3.8.0) (2021-08-15)
 
 
diff --git a/setup.py b/setup.py
index 096a317c72..d2f6d92d7e 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 name = "google-cloud-spanner"
 description = "Cloud Spanner API client library"
-version = "3.8.0"
+version = "3.9.0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'