diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2df6e38..1fb8953 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -36,12 +36,12 @@ jobs:
             toxenv: typing
     steps:
       - name: Check out repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           persist-credentials: false
 
       - name: Set up Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -60,7 +60,7 @@ jobs:
 
       - name: Upload coverage to Codecov
         if: matrix.toxenv == 'py'
-        uses: codecov/codecov-action@v6
+        uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6
         with:
           fail_ci_if_error: false
           token: ${{ secrets.CODECOV_TOKEN }}