diff --git a/CMakeLists.txt b/CMakeLists.txt
index 50e67f970..5687b8e7a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,10 +29,10 @@ LIST(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Thirdparty)
 #string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" VERSION_PATCH "${VERSION}")
 
 
-SET(PACKAGE_VERSION 4.1.0) # ${VERSION})
-SET(VERSION 4.1.0)
+SET(PACKAGE_VERSION 4.2.0) # ${VERSION})
+SET(VERSION 4.2.0)
 SET(SINGA_MAJOR_VERSION 4)
-SET(SINGA_MINOR_VERSION 1)
+SET(SINGA_MINOR_VERSION 2)
 SET(SINGA_PATCH_VERSION 0)
 #SET(SINGA_MAJOR_VERSION ${VERSION_MAJOR})  # 0 -
 #SET(SINGA_MINOR_VERSION ${VERSION_MINOR})  # 0 - 9
diff --git a/setup.py b/setup.py
index b4c01e419..c057b78c4 100644
--- a/setup.py
+++ b/setup.py
@@ -83,7 +83,7 @@
 from datetime import date
 
 # stable version
-VERSION = '4.1.0'
+VERSION = '4.2.0'
 # get the git hash
 # git_hash = subprocess.check_output(["git", "describe"]).strip().split('-')[-1][1:]
 # comment the next line to build wheel for stable version
diff --git a/tool/conda/singa/meta.yaml b/tool/conda/singa/meta.yaml
index 5bcc36212..a3428a598 100644
--- a/tool/conda/singa/meta.yaml
+++ b/tool/conda/singa/meta.yaml
@@ -20,7 +20,7 @@
 # https://docs.conda.io/projects/conda-build/en/latest/resources/define-metadata.html#templating-with-jinja
 # {% set data = load_setup_py_data(setup_file='../../../python/singa/setup.py', from_recipe_dir=True) %}
 
-{% set version = "4.1.0" %}
+{% set version = "4.2.0" %}
 
 package:
   name: singa