diff --git a/appveyor.yml b/appveyor.yml
index 61abdb6..dfe308d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,6 +7,7 @@ environment:
 branches:
   only:
     - master
+    - dev/v20
   except:
     - gh-pages
 os: Windows Server 2012