diff --git a/README.md b/README.md
index 323113f8..2760a0e8 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Meeko: preparation of small molecules for AutoDock
 
 [![API stability](https://img.shields.io/badge/stable%20API-no-orange)](https://shields.io/)
-[![PyPI version fury.io](https://img.shields.io/badge/version-0.6.0-green.svg)](https://pypi.python.org/pypi/ansicolortags/)
+[![PyPI version fury.io](https://img.shields.io/badge/version-0.6.0--alpha-green.svg)](https://pypi.python.org/pypi/ansicolortags/)
 
 Meeko reads an RDKit molecule object and writes a PDBQT string (or file)
 for [AutoDock-Vina](https://github.com/ccsb-scripps/AutoDock-Vina)
diff --git a/setup.py b/setup.py
index bda120c8..7aa2c060 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@ def find_files(directory):
 
 setup(
     name="meeko",
-    version='0.6.0',
+    version='0.6.0-alpha',
     author="Forli Lab",
     author_email="forli@scripps.edu",
     url="https://github.com/ccsb-scripps/meeko",