diff --git a/code-scanning/codescan.yml b/code-scanning/codescan.yml
index 3b24d9f..92707b1 100644
--- a/code-scanning/codescan.yml
+++ b/code-scanning/codescan.yml
@@ -17,8 +17,14 @@ on:
   schedule:
     - cron: $cron-weekly
 
+permissions:
+  contents: read
+
 jobs:
     CodeScan:
+        permissions:
+          contents: read # for actions/checkout to fetch code
+          security-events: write # for github/codeql-action/upload-sarif to upload SARIF results
         runs-on: ubuntu-latest
         steps:
             -   name: Checkout repository