diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4601afb..d7117c5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,9 @@
 name: CI
 on: pull_request
+
+permissions:
+  contents: read
+
 jobs:
   test:
     timeout-minutes: 2
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 413065d..f15a71a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -5,6 +5,10 @@ on:
       - main
       - '[0-9]+.x'
       - '[0-9]+.[0-9]+.x'
+
+permissions:
+  contents: read
+
 jobs:
   release:
     name: Release