diff --git a/appveyor.yml b/appveyor.yml
index 39870d83..107144fa 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,5 @@
 # version format
-version: 1.8.{build}
+version: 1.9.{build}
 
 # build only tags
 skip_non_tags: true