diff --git a/CADETMatch/version.py b/CADETMatch/version.py
index 79374e5..37ac3af 100644
--- a/CADETMatch/version.py
+++ b/CADETMatch/version.py
@@ -18,5 +18,5 @@
 __email__ = "w.heymann@fz-juelich.de"
 __license__ = "GNU General Public License v3 (GPLv3)"
 __copyright__ = "2020 %s" % __author__
-__version__ = "0.8.14"
+__version__ = "0.8.15"
 __uri__ = "https://github.com/modsim/CADET-Match"
diff --git a/setup.py b/setup.py
index 5cab93b..9aa04ad 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,8 @@
           'jstyleson>=0.0.2',
           'attrs>=21.2.0',
           'filelock',
-          'numba'
+          'numba',
+          'arviz>=0.11.2'
       ],
     classifiers=[
         "Programming Language :: Python :: 3",