diff --git a/databricks/koalas/version.py b/databricks/koalas/version.py
index e6c7a7d7fb..efb0057764 100644
--- a/databricks/koalas/version.py
+++ b/databricks/koalas/version.py
@@ -14,4 +14,4 @@
 # limitations under the License.
 #
 
-__version__ = "1.1.0"
+__version__ = "1.2.0"