diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e13e7aa..84e190e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,8 @@
 name: CI
 
+permissions:
+  contents: read
+
 on:
   pull_request:
   push:
@@ -83,6 +86,10 @@ jobs:
           RUSTFLAGS: ${{ env.RUSTFLAGS }} -Z randomize-layout
 
   security_audit:
+    permissions:
+      checks: write
+      contents: read
+      issues: write
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index be57bd1..d61ac7a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,5 +1,8 @@
 name: Release
 
+permissions:
+  contents: write
+
 on:
   push:
     tags: