diff --git a/appveyor.yml b/appveyor.yml
index b19d2b02..4b9965fa 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,5 @@
 image: Visual Studio 2019
-version: '4.2.0.{build}'
+version: '4.2.1.{build}'
 platform: x64
 branches:
     only: