diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 84bd099..6a22a0a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,6 +6,9 @@ on:
     branches: [ main ]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   lint-and-typecheck:
     name: Linting and Type Checking
diff --git a/.github/workflows/caches.yml b/.github/workflows/caches.yml
index a65977d..073709b 100644
--- a/.github/workflows/caches.yml
+++ b/.github/workflows/caches.yml
@@ -4,6 +4,9 @@ on:
     types:
       - closed
 
+permissions:
+  actions: write
+
 jobs:
   cleanup:
     runs-on: ubuntu-latest