diff --git a/.github/workflows/edenscm-libs.yml b/.github/workflows/edenscm-libs.yml
index 9f46c61cb67f5..1bd761dd59104 100644
--- a/.github/workflows/edenscm-libs.yml
+++ b/.github/workflows/edenscm-libs.yml
@@ -3,6 +3,9 @@ name: EdenSCM Rust Libraries
 on:
   workflow_dispatch
 
+permissions:
+  contents: read
+
 jobs:
   build:
 
diff --git a/.github/workflows/sapling-addons.yml b/.github/workflows/sapling-addons.yml
index bf2c0f0e5843b..3f4109f3ee2b1 100644
--- a/.github/workflows/sapling-addons.yml
+++ b/.github/workflows/sapling-addons.yml
@@ -5,6 +5,9 @@ env:
 on:
   public
 
+permissions:
+  contents: read
+
 jobs:
   verify-addons:
     runs-on: ubuntu-latest