diff --git a/README.rst b/README.rst
index 1190eb17843..c7cdde4be31 100644
--- a/README.rst
+++ b/README.rst
@@ -186,7 +186,7 @@ We are using `pytest <http://doc.pytest.org>`_ for tests. You can run them via:
 
 What's new
 ==========
-- 2019-05-24 (v0.12.2)
+- 2019-05-24 (v0.12.3)
     + remove pyopengl dependency and use more narrow atari-py and box2d-py versions
 
 - 2019-03-25 (v0.12.1)
diff --git a/gym/version.py b/gym/version.py
index a4ba93b15f7..e1ad1209b87 100644
--- a/gym/version.py
+++ b/gym/version.py
@@ -1 +1 @@
-VERSION = '0.12.2'
+VERSION = '0.12.3'