diff --git a/appveyor.yml b/appveyor.yml
index 388eced8..6b684e57 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 1.0.{build}
+version: 3.1.{build}
 branches:
   only:
   - release