diff --git a/AppVeyor.yml b/AppVeyor.yml
index 5534818..56652c6 100644
--- a/AppVeyor.yml
+++ b/AppVeyor.yml
@@ -1,4 +1,4 @@
-version: 18.3.1.{build}
+version: 18.5.1.{build}
 branches:
     only:
         - master