diff --git a/im2deep/__init__.py b/im2deep/__init__.py
index d51f091..d4ea359 100644
--- a/im2deep/__init__.py
+++ b/im2deep/__init__.py
@@ -1,3 +1,3 @@
 """IM2Deep: Deep learning framework for peptide collisional cross section prediction."""
 
-__version__ = "0.3.0"
+__version__ = "0.3.1"