diff --git a/LICENSE.txt b/LICENSE.txt
index 8e73798..a8e5cd6 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2020-2023 Stefan Holst
+Copyright (c) 2020-2025 Stefan Holst
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/docs/conf.py b/docs/conf.py
index 83cafc9..632fc96 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -20,11 +20,11 @@ sys.path.insert(0, os.path.abspath('../src'))
 # -- Project information -----------------------------------------------------
 
 project = 'KyuPy'
-copyright = '2020-2023, Stefan Holst'
+copyright = '2020-2025, Stefan Holst'
 author = 'Stefan Holst'
 
 # The full version, including alpha/beta/rc tags
-release = '0.0.5'
+release = '0.0.6'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/pyproject.toml b/pyproject.toml
index b8aaecb..0130ee1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "kyupy"
-version = "0.0.5"
+version = "0.0.6"
 authors = [
   { name="Stefan Holst", email="mail@s-holst.de" },
 ]
diff --git a/src/kyupy/logic.py b/src/kyupy/logic.py
index 3e97f8e..5cfbe92 100644
--- a/src/kyupy/logic.py
+++ b/src/kyupy/logic.py
@@ -114,7 +114,7 @@ def mvarray(*a):
 def mv_str(mva, delim='\n'):
     """Renders a given multi-valued array into a string.
     """
-    sa = np.choose(mva, np.array([*'0X-1PRFN'], dtype=np.unicode_))
+    sa = np.choose(mva, np.array([*'0X-1PRFN'], dtype=np.str_))
     if not hasattr(mva, 'ndim') or mva.ndim == 0: return sa
     if mva.ndim == 1: return ''.join(sa)
     return delim.join([''.join(c) for c in sa.swapaxes(-1,-2)])