diff --git a/GPy/examples/regression.py b/GPy/examples/regression.py
index 9c6b68ab..13146e12 100644
--- a/GPy/examples/regression.py
+++ b/GPy/examples/regression.py
@@ -721,6 +721,7 @@ def multioutput_gp_with_derivative_observations(plot=True):
         likelihood_list=[gauss, gauss_der],
     )
 
+
     # Optimize the model
     m.optimize(messages=0, ipython_notebook=False)
 
diff --git a/appveyor.yml b/appveyor.yml
index 9cfad489..667ab99d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,7 +3,7 @@ environment:
     secure: 8/ZjXFwtd1S7ixd7PJOpptupKKEDhm2da/q3unabJ00=
   COVERALLS_REPO_TOKEN:
     secure: d3Luic/ESkGaWnZrvWZTKrzO+xaVwJWaRCEP0F+K/9DQGPSRZsJ/Du5g3s4XF+tS
-  gpy_version: 1.10.0
+  gpy_version: 1.12.0
   matrix:
     - PYTHON_VERSION: 3.5
       MINICONDA: C:\Miniconda35-x64