diff --git a/.gitignore b/.gitignore
index 9e4c862..a33a7a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,9 @@
 *~
+.eggs/
+dist/
+wheelhouse/
+cosmotool.egg-info/
+build/
 *.o
 *.prog
 *.pyc
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 565a80e..ca6f9ca 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,8 +70,8 @@ SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY "A toolbox for impatient cosmologists")
 SET(CPACK_PACKAGE_VENDOR "Guilhem Lavaux")
 SET(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENCE_CeCILL_V2")
 SET(CPACK_PACKAGE_VERSION_MAJOR "1")
-SET(CPACK_PACKAGE_VERSION_MINOR "0")
-SET(CPACK_PACKAGE_VERSION_PATCH "0${EXTRA_VERSION}")
+SET(CPACK_PACKAGE_VERSION_MINOR "1")
+SET(CPACK_PACKAGE_VERSION_PATCH "1${EXTRA_VERSION}")
 SET(CPACK_PACKAGE_INSTALL_DIRECTORY "CosmoToolbox-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}")
 SET(CPACK_STRIP_FILES "lib/libCosmoTool.so")
 SET(CPACK_SOURCE_IGNORE_FILES 
diff --git a/python/_cosmomath.pyx b/python/_cosmomath.pyx
index 4b2b21f..0aa5fd4 100644
--- a/python/_cosmomath.pyx
+++ b/python/_cosmomath.pyx
@@ -1,3 +1,4 @@
+#cython: language_level=3
 import numpy as np
 cimport numpy as np
 
@@ -7,15 +8,21 @@ np.import_ufunc()
 cdef extern from "sys/types.h":
    ctypedef np.int64_t int64_t
 
+cdef extern from "numpy/npy_common.h":
+   ctypedef npy_intp
+
 cdef extern from "special_math.hpp" namespace "CosmoTool":
    T log_modified_bessel_first_kind[T](T v, T z) nogil except +
 
+cdef extern from "numpy_adaptor.hpp" namespace "CosmoTool":
+   void parallel_ufunc_dd_d[T,IT](char **args, IT* dimensions, IT* steps, void *func)
+
 
 cdef np.PyUFuncGenericFunction loop_func[1]
 cdef char input_output_types[3]
 cdef void *elementwise_funcs[1]
 
-loop_func[0] = np.PyUFunc_dd_d
+loop_func[0] = <np.PyUFuncGenericFunction>parallel_ufunc_dd_d[double,npy_intp]
 
 input_output_types[0] = np.NPY_DOUBLE
 input_output_types[1] = np.NPY_DOUBLE
diff --git a/setup.py b/setup.py
index 08d94d9..04e9df0 100644
--- a/setup.py
+++ b/setup.py
@@ -218,7 +218,7 @@ class BuildCMakeExt(build_ext):
 CosmoTool_extension = CMakeExtension(name="cosmotool")
 
 setup(name='cosmotool',
-      version='1.1.0',
+      version='1.1.1',
       packages=["cosmotool"],
       package_dir={'cosmotool': 'python/cosmotool'},
       install_requires=['numpy','cffi','numexpr','pyfftw','h5py'],