diff --git a/appveyor.yml b/appveyor.yml
index 1f8776501..f713ca7bc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,6 +4,7 @@ environment:
     # /E:ON and /V:ON options are not enabled in the batch script intepreter
     # See: http://stackoverflow.com/a/13751649/163740
     CMD_IN_ENV: "cmd /E:ON /V:ON /C .\\tools\\ci\\appveyor\\run_with_env.cmd"
+    CONDA_NPY: "110"
 
   matrix:
     - PYTHON: "C:\\Miniconda"