diff --git a/appveyor.yml b/appveyor.yml
index f0184759d4b1ed01943c391bae97dc874f502448..c226253ac9c5f9d5ca56be4044b0d43460ba39e2 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,7 +14,7 @@ environment:
   matrix:
 
     - TARGET_ARCH: x64
-      CONDA_PY: 34
+      CONDA_PY: 35
 
 # We always use a 64-bit machine, but can build x86 distributions
 # with the TARGET_ARCH variable.