diff --git a/pyorient/constants.py b/pyorient/constants.py
index f7c2e699..516e62d9 100644
--- a/pyorient/constants.py
+++ b/pyorient/constants.py
@@ -4,7 +4,7 @@
 # Driver Constants
 #
 NAME = "OrientDB Python binary client (pyorient)"
-VERSION = "1.5.3b"
+VERSION = "1.5.5"
 SUPPORTED_PROTOCOL = 36
 
 #
diff --git a/setup.py b/setup.py
index b5138172..bff24de6 100755
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
 from setuptools import setup
 
 setup(name='pyorient',
-    version='1.5.4',
+    version='1.5.5',
     author='Niko Usai <mogui83@gmail.com>, Domenico Lupinetti <ostico@gmail.com>',
     description='OrientDB native client library',
     long_description=open('README.rst').read(),