diff --git a/doc/source/conf.py b/doc/source/conf.py
index a6a77777..4ce97717 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -53,9 +53,9 @@ copyright = '%s, Mathieu Pasquet - Florent Le Coz' % time.strftime('%Y')
 # built documents.
 #
 # The short X.Y version.
-version = '0.9'
+version = '1.0'
 # The full version, including alpha/beta/rc tags.
-release = '0.9'
+release = '1.0-dev'
 
 add_function_parentheses = True
 
diff --git a/setup.py b/setup.py
index 289d4286..f514324b 100755
--- a/setup.py
+++ b/setup.py
@@ -65,7 +65,7 @@ with open('README.rst', encoding='utf-8') as readme_fd:
     LONG_DESCRIPTION = readme_fd.read()
 
 setup(name="poezio",
-      version="0.9",
+      version="1.0" + version,
       description="A console XMPP client",
       long_description=LONG_DESCRIPTION,
       ext_modules=[module_poopt],
diff --git a/src/args.py b/src/args.py
index 6d381e67..63e77927 100644
--- a/src/args.py
+++ b/src/args.py
@@ -23,6 +23,6 @@ def parse_args(CONFIG_PATH=''):
                         metavar="CONFIG_FILE")
     parser.add_argument("-v", "--version", dest="version",
                         help=SUPPRESS, metavar="VERSION",
-                        default="0.9")
+                        default="1.0-dev")
     options = parser.parse_args()
     return options