diff --git a/appveyor.yml b/appveyor.yml
index 2fc47eaf1..ab7b7a389 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -40,3 +40,6 @@ cache:
   - C:\Users\appveyor\.m2
   - C:\Users\appveyor\.sbt
   - C:\Users\appveyor\.coursier
+branches:
+  only:
+    - master