diff --git a/py/fastspecfit/_version.py b/py/fastspecfit/_version.py
index f71b21a5..d6cea9d6 100644
--- a/py/fastspecfit/_version.py
+++ b/py/fastspecfit/_version.py
@@ -1 +1 @@
-__version__ = '3.1.2'
+__version__ = '3.1.2.dev2033'