diff --git a/python/pyspark/version.py b/python/pyspark/version.py
index 9ac6b1fe2d274..49f40552f2e01 100644
--- a/python/pyspark/version.py
+++ b/python/pyspark/version.py
@@ -16,4 +16,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__: str = "2815!3.3.2+affirm.4"
+__version__: str = "2815!3.3.2+affirm.dev21"