diff --git a/setup.py b/setup.py
index 6f5235f2..b2af788d 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
   name = 'spotpy',
-  version = '1.5.12',
+  version = '1.5.13',
   description = 'A Statistical Parameter Optimization Tool',
   long_description=open(os.path.join(os.path.dirname(__file__),
                                        "README.rst")).read(),
@@ -14,7 +14,7 @@
   url = 'https://spotpy.readthedocs.io/en/latest/',
   license = 'MIT',
   install_requires=[
-          'scipy', 'numpy', 'logging'],
+          'scipy', 'numpy'],
   packages=find_packages(exclude=["tests*", "docs*"]),
   use_2to3 = True,
   keywords = 'Monte Carlo, MCMC, MLE, SCE-UA, Simulated Annealing, DE-MCz, DREAM, ROPE, Artifical Bee Colony, DDS, PA-DDS, Uncertainty, Calibration, Model, Signatures',
diff --git a/spotpy/__init__.py b/spotpy/__init__.py
index 8cddb744..26d052b9 100644
--- a/spotpy/__init__.py
+++ b/spotpy/__init__.py
@@ -40,4 +40,4 @@
 from . import describe            # Contains some helper functions to describe samplers and set-ups
 from .hydrology import signatures # Quantifies goodness of fit between simulation and evaluation data with hydrological signatures
 
-__version__ = '1.5.12'
\ No newline at end of file
+__version__ = '1.5.13'
\ No newline at end of file