diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a95379a..2e2e6bd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,7 @@
 name: 'Continuous Integration'
 on: [ push, workflow_dispatch ]
+permissions:
+  contents: read
 env:
   GRADLE_OPTS: >-
     -Dorg.gradle.project.buildDate=$(date +%s)