diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 185fd6d..3ebc7ad 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -5,6 +5,9 @@ on:
     - main
   workflow_dispatch:
   pull_request:
+permissions:
+  contents: read
+
 jobs:
   Build-and-Test-CDK:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/update_snapshot.yml b/.github/workflows/update_snapshot.yml
index 4861005..462e446 100644
--- a/.github/workflows/update_snapshot.yml
+++ b/.github/workflows/update_snapshot.yml
@@ -6,6 +6,9 @@ on:
     branches:
        - 'dependabot/**'
 
+permissions:
+  contents: write
+
 jobs:
   update:
     runs-on: ubuntu-latest