diff --git a/.appveyor.yml b/.appveyor.yml
index 87132ef..c746a4f 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -1,3 +1,7 @@
+branches:
+  only:
+    - master
+
 environment:
   MINICONDA: "C:\\Miniconda"
   PYTHON: "C:\\Python35"