diff --git a/version.py b/version.py
index 0f19de0..d1fd8c0 100644
--- a/version.py
+++ b/version.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-version = '3.0.0a1'
+version = '3.1.0'
 
 required_versions = {'toil': '>=3.3.5',
                      'toil-lib': '==1.1.3',