diff --git a/action.yml b/action.yml
index 3e39fd1..6e32284 100644
--- a/action.yml
+++ b/action.yml
@@ -139,7 +139,8 @@ runs:
   - name: Install Python 3
     if: steps.pre-installed-python.outputs.python-path == ''
     id: new-python
-    uses: actions/setup-python@v5
+    # yamllint disable-line rule:line-length
+    uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065  # v5.6.0
     with:
       python-version: 3.x
   - name: Create Docker container action