diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index aa9757a..50a4d89 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -21,7 +21,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install package
       run: |
-        pip install --upgrade pip setuptools wheel
+        pip install --upgrade "pip<=24.1" setuptools wheel
         pip install .[dev]
     - name: make test-devel
       run: make test-devel
diff --git a/HISTORY.md b/HISTORY.md
index f678124..e7b72f2 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,12 +1,17 @@
 # History
 
+## 0.4.1 - 2024-11-15
+
+### Primitive Improvements
+
+* SimpleImputer primitive update – [Issue #280](https://github.com/MLBazaar/MLPrimitives/issues/280) by @sarahmish
+
 ## 0.4.0 - 2024-03-22
 
 ### General Imporvements
 
 * Upgrade python versions 3.9, 3.10, and 3.11 - [Issue #279](https://github.com/MLBazaar/MLPrimitives/issues/279) by @sarahmish
-* Adapt to statsmodels.tsa.arima_model.ARIMA deprecation
- - [Issue #253](https://github.com/MLBazaar/MLPrimitives/issues/253) by @sarahmish
+* Adapt to statsmodels.tsa.arima_model.ARIMA deprecation - [Issue #253](https://github.com/MLBazaar/MLPrimitives/issues/253) by @sarahmish
 
 ## 0.3.5 - 2023-04-14
 
diff --git a/mlprimitives/__init__.py b/mlprimitives/__init__.py
index 6a501fe..11031d7 100644
--- a/mlprimitives/__init__.py
+++ b/mlprimitives/__init__.py
@@ -4,7 +4,7 @@
 
 __author__ = 'MIT Data To AI Lab'
 __email__ = 'dailabmit@gmail.com'
-__version__ = '0.4.0'
+__version__ = '0.4.1.dev1'
 
 import os
 
diff --git a/mlprimitives/primitives/sklearn.impute.SimpleImputer.json b/mlprimitives/primitives/sklearn.impute.SimpleImputer.json
index 57d32fc..8301ca1 100644
--- a/mlprimitives/primitives/sklearn.impute.SimpleImputer.json
+++ b/mlprimitives/primitives/sklearn.impute.SimpleImputer.json
@@ -45,10 +45,6 @@
                 "type": "str, int or float",
                 "default": null
             },
-            "verbose": {
-                "type": "bool",
-                "default": false
-            },
             "copy": {
                 "type": "bool",
                 "default": true
diff --git a/setup.cfg b/setup.cfg
index 49b0d99..4b02f3f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.4.0
+current_version = 0.4.1.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 b92032f..a22f1a4 100644
--- a/setup.py
+++ b/setup.py
@@ -132,6 +132,6 @@
     test_suite='tests',
     tests_require=tests_require,
     url='https://github.com/MLBazaar/MLPrimitives',
-    version='0.4.0',
+    version='0.4.1.dev1',
     zip_safe=False,
 )