diff --git a/CHANGELOG.md b/CHANGELOG.md
index c6941527..aa59b857 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+0.6.4
+=====
+- Fix regression introduced in 0.6.3 regarding hooks which make non-utf8 diffs
+
 0.6.3
 =====
 - Remove `expected_return_code`
diff --git a/setup.py b/setup.py
index 92c99061..fbe6b6ad 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@ setup(
         'hooks.'
     ),
     url='https://github.com/pre-commit/pre-commit',
-    version='0.6.3',
+    version='0.6.4',
 
     author='Anthony Sottile',
     author_email='asottile@umich.edu',