diff --git a/SOSAT/__init__.py b/SOSAT/__init__.py
index 605141d..1c2cc0b 100644
--- a/SOSAT/__init__.py
+++ b/SOSAT/__init__.py
@@ -10,7 +10,7 @@
 
 __author__ = """Jeff Burghardt"""
 __email__ = 'jeffrey.burghardt@pnnl.gov'
-__version__ = '0.3.2'
+__version__ = '0.4.0'
 
 from .stress_state import StressState, units
 from .constraints import FaultConstraint
diff --git a/setup.cfg b/setup.cfg
index b295dc3..ceabad6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.3.2
+current_version = 0.4.0
 commit = True
 tag = True
 
diff --git a/setup.py b/setup.py
index 4f826c2..0ca5420 100644
--- a/setup.py
+++ b/setup.py
@@ -50,6 +50,6 @@
     test_suite='tests',
     tests_require=test_requirements,
     url='https://github.com/pnnl/SOSAT',
-    version='0.3.2',
+    version='0.4.0',
     zip_safe=False,
 )