diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b859983..642ddb9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,8 +11,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+      - uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5
         with:
           python-version: '3.12'
       - name: Install dependencies