diff --git a/setup.py b/setup.py
index 1cbcfd8..5c2e4ca 100755
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@ def get_info(module):
 sys.path.insert(0, "."); import zeroconf
 info = get_info(zeroconf)
 
-info["requires"] = ["pbs"]
+info["requires"] = ["sh"]
 
 distutils.core.setup(**info)
 
diff --git a/zeroconf.py b/zeroconf.py
index 8da0016..ced332a 100644
--- a/zeroconf.py
+++ b/zeroconf.py
@@ -8,7 +8,7 @@
 __author__ = u"Sébastien Boisgérault <Sebastien.Boisgerault@mines-paristech.fr>"
 __license__ = "MIT License"
 __url__ = "https://github.com/boisgera/zeroconf" 
-__version__ = "1.0.0"
+__version__ = "2.0.0"
 
 # Python 2.7 Standard Library
 import atexit
@@ -20,7 +20,7 @@
 
 if sys.platform.startswith("linux"):
     # Third-Party Libraries
-    import pbs as host    
+    import sh as host    
     if not host.which("avahi-browse"):
         raise ImportError("unable to find avahi command-line tools")
 elif sys.platform.startswith("win"):