diff --git a/HISTORY.md b/HISTORY.md
index 738a3d4..b284cd2 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,9 @@
 # History
 
+## 0.2.2 – 2024-12-03
+
+* ``SimpleImputer`` primitive update [Issue#17](https://github.com/sintel-dev/ml-stars/issues/17) - by @sarahmish
+
 ## 0.2.1 – 2024-11-25
 
 * Adapter for MinMaxScaler [Issue #16](https://github.com/sintel-dev/ml-stars/issues/16) - by @sarahmish 
diff --git a/mlstars/__init__.py b/mlstars/__init__.py
index ca51bfa..0ac4f31 100644
--- a/mlstars/__init__.py
+++ b/mlstars/__init__.py
@@ -2,7 +2,7 @@
 
 __author__ = 'MIT Data To AI Lab'
 __email__ = 'dailabmit@gmail.com'
-__version__ = '0.2.1'
+__version__ = '0.2.2.dev1'
 
 import os
 
diff --git a/setup.cfg b/setup.cfg
index 28d1007..db16b83 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.2.1
+current_version = 0.2.2.dev1
 commit = True
 tag = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\.(?P<release>[a-z]+)(?P<candidate>\d+))?
diff --git a/setup.py b/setup.py
index bae2db8..fe31856 100644
--- a/setup.py
+++ b/setup.py
@@ -118,6 +118,6 @@
     test_suite='tests',
     tests_require=tests_require,
     url='https://github.com/sintel-dev/ml-stars',
-    version='0.2.1',
+    version='0.2.2.dev1',
     zip_safe=False,
 )