diff --git a/black.py b/black.py
index f1b1c30..0da2fad 100644
--- a/black.py
+++ b/black.py
@@ -46,7 +46,7 @@
 from blib2to3.pgen2.parse import ParseError
 
 
-__version__ = "18.6b2"
+__version__ = "18.6b3"
 DEFAULT_LINE_LENGTH = 88
 DEFAULT_EXCLUDES = (
     r"/(\.git|\.hg|\.mypy_cache|\.tox|\.venv|_build|buck-out|build|dist)/"
diff --git a/pyproject.toml b/pyproject.toml
index 6ed4499..4e1ed97 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ exclude = '''
 
 [tool.poetry]
 name = "black"
-version = "18.6b2"
+version = "18.6b3"
 description = "The uncompromising code formatter."
 readme = "README.md"
 # FIXME: use proper Unicode below when new `pip` comes out with a fix for