diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 19275a3..67869dd 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.3.0
+current_version = 0.3.1
 commit = True
 tag = True
 tag_name = {new_version}
diff --git a/fdtd/__init__.py b/fdtd/__init__.py
index 95e6970..049d6af 100644
--- a/fdtd/__init__.py
+++ b/fdtd/__init__.py
@@ -1,7 +1,7 @@
 """ Python 3D FDTD Simulator """
 
 __author__ = "Floris laporte"
-__version__ = "0.3.0"
+__version__ = "0.3.1"
 
 from .grid import Grid
 from .sources import PointSource, LineSource, PlaneSource
diff --git a/setup.cfg b/setup.cfg
index 156c8d6..f949d3e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = fdtd
-version = 0.3.0
+version = 0.3.1
 description = a 3D electromagnetic FDTD simulator written in Python
 author = Floris Laporte
 author_email = floris.laporte@gmail.com