diff --git a/stereo/common.py b/stereo/common.py
index 485545b4..118adf88 100644
--- a/stereo/common.py
+++ b/stereo/common.py
@@ -8,4 +8,4 @@
 """
 
 # version
-version = '1.3.1b2'
+version = '1.3.1'