diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 76ac5b1acf0b7a20f0eb6e848d0477a89323cfcf..db93fda9e46e25551052d27daa8c90d6d375587f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,7 +1,11 @@
 name: Build LaTeX document
 on: 
   push:
+    branches:
+      - master
   pull_request:
+    branches:
+      - master
 
 jobs:
   build_latex: