diff --git a/.travis.yml b/.travis.yml
index 68e060b..5645f5a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,10 @@ language: node_js
 node_js:
   - "13"
 
+branches:
+  only:
+  - master
+
 install:
   - npm install -g typescript
   - npm install --save-dev