diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 87bb52b0..e30a73fb 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.8.0
+current_version = 0.9.0
 commit = True
 tag = True
 
diff --git a/docs/conf.py b/docs/conf.py
index b97c3cec..fefb1596 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -28,7 +28,7 @@
 year = "2021"
 author = "Subhash Bhushan C"
 copyright = "{0}, {1}".format(year, author)
-version = release = "0.8.0"
+version = release = "0.9.0"
 
 pygments_style = "autumn"
 templates_path = ["."]
diff --git a/setup.py b/setup.py
index 30ed602d..7ecf253c 100644
--- a/setup.py
+++ b/setup.py
@@ -93,7 +93,7 @@ def read(*names, **kwargs):
 
 setup(
     name="protean",
-    version="0.8.0",
+    version="0.9.0",
     license="BSD 3-Clause License",
     description="Protean Application Framework",
     long_description="%s\n%s"
diff --git a/src/protean/__init__.py b/src/protean/__init__.py
index 707a6513..60b2c260 100644
--- a/src/protean/__init__.py
+++ b/src/protean/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.8.0"
+__version__ = "0.9.0"
 
 from .core.aggregate import BaseAggregate
 from .core.application_service import BaseApplicationService