diff --git a/appveyor.yml b/appveyor.yml
index 2aff832..b082856 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 3.0.{build}
+version: 3.1.{build}
 install:
   - nuget restore
 configuration: Release