diff --git a/pyrex.py b/pyrex.py
index 1dba3d2..fb1d62e 100755
--- a/pyrex.py
+++ b/pyrex.py
@@ -32,7 +32,7 @@
 import tempfile
 import contextlib
 
-VERSION = "0.0.4"
+VERSION = "1.0.0-beta1"
 
 VERSION_REGEX = re.compile(r"^([0-9]+\.){2}[0-9]+(-.*)?$")
 VERSION_TAG_REGEX = re.compile(r"^v([0-9]+\.){2}[0-9]+(-.*)?$")