diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 60e8b9b..2ec5d04 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,9 @@ on:
   pull_request:
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   verify-swift-package-binaryTargets:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/spm-collection.yml b/.github/workflows/spm-collection.yml
index 2228c70..ddf7e99 100644
--- a/.github/workflows/spm-collection.yml
+++ b/.github/workflows/spm-collection.yml
@@ -11,6 +11,10 @@ on:
         required: true
         default: "true"
 
+permissions:
+  contents: write
+  pull-requests: write
+
 jobs:
   generate-signed-collection:
     runs-on: macos-12