diff --git a/docs/conf.py b/docs/conf.py
index dce1834..ad7269e 100755
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -73,9 +73,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = u'0.8.0'
+version = u'0.9.0'
 # The full version, including alpha/beta/rc tags.
-release = u'0.8.0'
+release = u'0.9.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.cfg b/setup.cfg
index ec23048..33a6aae 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.8.0
+current_version = 0.9.0
 tag = True
 tag_name = v{new_version}
 
diff --git a/setup.py b/setup.py
index 6585936..545b413 100644
--- a/setup.py
+++ b/setup.py
@@ -29,7 +29,7 @@
     # Versions should comply with PEP440.  For a discussion on single-sourcing
     # the version across setup.py and the project code, see
     # https://packaging.python.org/en/latest/single_source_version.html
-    version='0.8.0',
+    version='0.9.0',
 
     description='Python library for Bluetooth Low Energy (BLE) on Linux',
     long_description=long_description,