diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 0367880..275004e 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -17,6 +17,9 @@ name: Java CI
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
 jobs:
   build: