diff --git a/setup.py b/setup.py
index fc9f5a23f..2ad4c4436 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ def read(fname):
 
 
 setup(name='TESPy',
-      version='0.1.1 dev',
+      version='0.1.1',
       description='Thermal Engineering Systems in Python (TESPy)',
       url='http://github.com/oemof/tespy',
       author='Francesco Witte',
diff --git a/tespy/__init__.py b/tespy/__init__.py
index 830bf4c46..a8cccf07e 100644
--- a/tespy/__init__.py
+++ b/tespy/__init__.py
@@ -2,7 +2,7 @@
 .. moduleauthor:: Francesco Witte <francesco.witte@hs-flensburg.de>
 
 """
-__version__ = '0.1.1 dev'
+__version__ = '0.1.1'
 
 from tespy.components import characteristics as cmp_char, components as cmp, subsystems as subsys
 from tespy import connections as con