diff --git a/CHANGELOG.md b/CHANGELOG.md
index 916aaf6..0a938de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# v0.6.7
+ - set LC_CTYPE to en_US.UTF-8 if it is not set
+
+
 # v0.6.6
 
  - Use backported is_ascii (#415)
diff --git a/radian/__init__.py b/radian/__init__.py
index db4857d..b3354fa 100644
--- a/radian/__init__.py
+++ b/radian/__init__.py
@@ -1,5 +1,5 @@
 from .app import get_app, main
 
-__version__ = '0.6.6'
+__version__ = '0.6.7'
 
 __all__ = ["get_app", "main"]