diff --git a/docs/changelog.rst b/docs/changelog.rst
index 38662d5..ca95b67 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -5,6 +5,13 @@
 Changelog
 =========
 
+1.6.0
+-----
+
+- Dropped support for Python 3.6
+- Fixed ``token_is_valid()`` accepting some invalid tokens
+
+
 1.5.0
 -----
 
diff --git a/s2cell/__init__.py b/s2cell/__init__.py
index 22df2a2..d9a6fb2 100644
--- a/s2cell/__init__.py
+++ b/s2cell/__init__.py
@@ -16,4 +16,4 @@
 
 from .s2cell import *
 
-__version__ = '1.5.0'
+__version__ = '1.6.0'
diff --git a/tests/test_s2cell.py b/tests/test_s2cell.py
index 1e81c58..a25806c 100644
--- a/tests/test_s2cell.py
+++ b/tests/test_s2cell.py
@@ -191,7 +191,7 @@ def test_cell_id_is_valid_compat():
     ('2ef0000000000000', True),
     ('2ef00000000000000', False),  # Too long
     ('2efinvalid', False),  # Invalid characters
-    ('86R', False), # Invalid hex
+    ('86R', False),  # Invalid hex
     ('2efx', False),  # Incorrect use of X
 ])
 def test_token_is_valid(token, is_valid):