diff --git a/setup.py b/setup.py
index 51f188d..36420e9 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
 
 setup(
     name='smpplib',
-    version='2.2.1',
+    version='2.2.3',
     url='https://github.com/python-smpplib/python-smpplib',
     description='SMPP library for python',
     packages=find_packages(),
diff --git a/smpplib/consts.py b/smpplib/consts.py
index 2987354..8218d93 100644
--- a/smpplib/consts.py
+++ b/smpplib/consts.py
@@ -6,7 +6,7 @@
 # SMPP 3.4, 2.2.1.2
 SEVENBIT_LENGTH = 160
 EIGHTBIT_LENGTH = 140
-UCS2_LENGTH = 70
+UCS2_LENGTH = 140
 
 MULTIPART_HEADER_SIZE = 6