diff --git a/README.md b/README.md
index cf7e9206..c56c6c55 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ Usage
           env: PIP=pip2
 
     script:
-      - $PIP install cibuildwheel==0.8.0
+      - $PIP install cibuildwheel==0.9.0
       - cibuildwheel --output-dir wheelhouse
     ```
 
@@ -60,7 +60,7 @@ Usage
 
     ```
     build_script:
-      - pip install cibuildwheel==0.8.0
+      - pip install cibuildwheel==0.9.0
       - cibuildwheel --output-dir wheelhouse
     artifacts:
       - path: "wheelhouse\\*.whl"
diff --git a/cibuildwheel/__init__.py b/cibuildwheel/__init__.py
index 32a90a3b..e4e49b3b 100644
--- a/cibuildwheel/__init__.py
+++ b/cibuildwheel/__init__.py
@@ -1 +1 @@
-__version__ = '0.8.0'
+__version__ = '0.9.0'
diff --git a/setup.cfg b/setup.cfg
index caa72422..08f02898 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.8.0
+current_version = 0.9.0
 commit = True
 tag = True
 message = Bump version
diff --git a/setup.py b/setup.py
index c0e1bd31..eacecaac 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ except ImportError:
 
 setup(
     name='cibuildwheel',
-    version='0.8.0',
+    version='0.9.0',
     install_requires=['bashlex'],
     description="Build Python wheels on CI with minimal configuration.",
     long_description='For readme please see http://github.com/joerick/cibuildwheel',