diff --git a/src/installer/__init__.py b/src/installer/__init__.py
index aa8e2447..3b332f74 100644
--- a/src/installer/__init__.py
+++ b/src/installer/__init__.py
@@ -1,6 +1,6 @@
 """A library for installing Python wheels."""
 
-__version__ = "0.6.0"
+__version__ = "0.7.0.dev0"
 __all__ = ["install"]
 
 from installer._core import install  # noqa