diff --git a/appveyor.yml b/appveyor.yml
index 8e524b2f7..91e2ac5c7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,5 @@
 platform: Any CPU
-version: 5.6.{build}
+version: 5.7.{build}
 configuration: Debug
 image: Visual Studio 2017