diff --git a/src/toil/version.py b/src/toil/version.py
index 44a32207f8..3ba9dfcc79 100644
--- a/src/toil/version.py
+++ b/src/toil/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-version = '3.1.3a1'
+version = '3.1.3'