diff --git a/docker/Dockerfile b/docker/Dockerfile
index 90815cc..b48e8ec 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,5 +1,5 @@
 ARG python_version=3.7
-ARG mass_version=0.1.3.a8
+ARG mass_version=0.1.3
 # Image to checkout and install a specific version of MASSpy
 FROM python:${python_version} AS env-setup
 ARG python_version
diff --git a/setup.cfg b/setup.cfg
index 5eee688..e6687da 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.1.3.a8
+current_version = 0.1.3
 commit = True
 tag = True
 tag_name = v{new_version}
diff --git a/src/mass/__init__.py b/src/mass/__init__.py
index bc98c96..314dabb 100644
--- a/src/mass/__init__.py
+++ b/src/mass/__init__.py
@@ -18,7 +18,7 @@
 from mass.util import qcqa_model, show_versions, strip_time
 
 
-__version__ = "0.1.3.a8"
+__version__ = "0.1.3"
 
 # set the warning format to be prettier and fit on one line
 _MASS_PATH = _dirname(_abspath(__file__))