diff --git a/openfermioncirq/_version.py b/openfermioncirq/_version.py
index 67d61eda..91656fab 100644
--- a/openfermioncirq/_version.py
+++ b/openfermioncirq/_version.py
@@ -14,6 +14,6 @@
 import sys
 
 if sys.version_info.major == 2:
-    __version__ = "0.0.1.dev27"  # coverage: ignore
+    __version__ = "0.1.0a27"  # coverage: ignore
 else:
-    __version__ = "0.0.1.dev35"
+    __version__ = "0.1.0a35"