diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 2ecae986..2d812c99 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,8 +1,8 @@
 Changelog
 =========
 
-0.9dev
-------
+0.9 (2018-05-24)
+-----------------
 * Added parallelization to batch processor
 * Preprocess step now runs in parallel
 * Filtering and standarization running in one step to avoid I/O overhead
diff --git a/src/yass/__init__.py b/src/yass/__init__.py
index be90ff53..f673bb1b 100644
--- a/src/yass/__init__.py
+++ b/src/yass/__init__.py
@@ -17,7 +17,7 @@
 
 logger = logging.getLogger(__name__)
 
-__version__ = '0.9dev'
+__version__ = '0.9'
 
 CONFIG = None