diff --git a/configure.ac b/configure.ac
index db969e3129b33bf56cc8fd7c4a9c7568f6ea3bd5..39962bbe61c62a5bf4d5d7ca4fdf2a4e8e4a256c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_INIT([Gajim - A Jabber Instant Messager],
-		[0.12-alpha1],[http://trac.gajim.org/],[gajim])
+		[0.12-beta1],[http://trac.gajim.org/],[gajim])
 AC_PREREQ([2.59])
 AM_INIT_AUTOMAKE([1.8])
 AC_CONFIG_HEADER(config.h)
diff --git a/gajim.nsi b/gajim.nsi
index daac7c10effdbb5f99f2b3a76b0f23367c536d41..f38a5f12333f950ffaf51ab780183091aed80bf0 100644
--- a/gajim.nsi
+++ b/gajim.nsi
@@ -189,7 +189,7 @@ Section "Gajim" SecGajim
 	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Gajim" "DisplayName" "Gajim"
 	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Gajim" "UninstallString" "$INSTDIR\Uninstall.exe"
 	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Gajim" "DisplayIcon" "$INSTDIR\bin\Gajim.exe"
-	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Gajim" "DisplayVersion" "0.12-alpha1"
+	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Gajim" "DisplayVersion" "0.12-beta1"
 	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Gajim" "URLInfoAbout" "http://www.gajim.org/"
 	WriteUninstaller "$INSTDIR\Uninstall.exe"
 
diff --git a/setup_osx.py b/setup_osx.py
index b92c26f65132860cf4b6c1bf911f030330263da5..12bc6a12b21363222999a378e7fc47941bf57cec 100644
--- a/setup_osx.py
+++ b/setup_osx.py
@@ -35,7 +35,7 @@ from shutil import move, copy, copytree, rmtree
 
 GTK_DIR="/Library/Frameworks/GTK+.framework/Versions/Current"
 NAME = 'Gajim'
-VERSION = '0.12-alpha1'
+VERSION = '0.12-beta1'
 DESCRIPTION = 'A full featured Jabber client'
 AUTHOR = 'Gajim Development Team'
 URL = 'http://www.gajim.org/'
diff --git a/setup_win32.py b/setup_win32.py
index d421357704340c67fa015e929aadd92eb6f4d73f..d19f00ad2843957acf8376038fd617ea6e4458f3 100644
--- a/setup_win32.py
+++ b/setup_win32.py
@@ -60,7 +60,7 @@ except ImportError:
 
 setup(
     name = 'Gajim',
-    version = '0.12-alpha1',
+    version = '0.12-beta1',
     description = 'A full featured Jabber client',
     author = 'Gajim Development Team',
     url = 'http://www.gajim.org/',
diff --git a/src/common/defs.py b/src/common/defs.py
index 55a2b92bd4bfc837b06af6685339bceba72fc9ff..1c418a1802c665a116b782b1e6ae80c495145871 100644
--- a/src/common/defs.py
+++ b/src/common/defs.py
@@ -28,7 +28,7 @@ import re
 docdir = '../'
 datadir = '../'
 
-version = '0.12-alpha1'
+version = '0.12-beta1'
 
 import sys, os.path
 for base in ('.', 'common'):