diff --git a/tpot2/_version.py b/tpot2/_version.py
index 94760e75..0a3553be 100644
--- a/tpot2/_version.py
+++ b/tpot2/_version.py
@@ -32,4 +32,4 @@
 License along with TPOT. If not, see <http://www.gnu.org/licenses/>.
 
 """
-__version__ = '0.1.8a0'
+__version__ = '0.1.9a0'