Resolve security audit findings

ober

071d3ae7d70e5085601caf768cf3657a51688564

diff --git a/.github/workflows/security-baseline.yml b/.github/workflows/security-baseline.yml
index 28a713e..5381c31 100644
--- a/.github/workflows/security-baseline.yml
+++ b/.github/workflows/security-baseline.yml
@@ -13,7 +13,7 @@ jobs:
   baseline:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Required release files
         run: |