diff --git a/.github/workflows/ci_master.yml b/.github/workflows/ci_master.yml
index 1a61c83..a9483fb 100644
--- a/.github/workflows/ci_master.yml
+++ b/.github/workflows/ci_master.yml
@@ -5,6 +5,9 @@ on:
     branches:
       - master
 
+permissions:
+  contents: write
+
 jobs:
   build:
     runs-on: ubuntu-latest