diff --git a/openfermionpsi4/_version.py b/openfermionpsi4/_version.py
index 328bff0..4100c2f 100644
--- a/openfermionpsi4/_version.py
+++ b/openfermionpsi4/_version.py
@@ -15,4 +15,4 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 """Define version number here and read it from setup.py automatically"""
-__version__ = "0.1a4"
+__version__ = "0.1"
diff --git a/requirements.txt b/requirements.txt
index b150ac1..927790e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-openfermion>=0.1a4
+openfermion>=0.1