diff --git a/GPy/__version__.py b/GPy/__version__.py
index c68196d1..a955fdae 100644
--- a/GPy/__version__.py
+++ b/GPy/__version__.py
@@ -1 +1 @@
-__version__ = "1.2.0"
+__version__ = "1.2.1"
diff --git a/appveyor.yml b/appveyor.yml
index 50e3d3fc..5a0f0577 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,7 +1,7 @@
 environment:
   pip_access:
     secure: 8/ZjXFwtd1S7ixd7PJOpptupKKEDhm2da/q3unabJ00=
-  gpy_version: 1.2.0
+  gpy_version: 1.2.1
   matrix:
     - PYTHON_VERSION: 2.7
       MINICONDA: C:\Miniconda-x64
diff --git a/setup.cfg b/setup.cfg
index d2f03e2c..57fddfaf 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.2.0
+current_version = 1.2.1
 tag = False
 commit = True