diff --git a/azure-devops-trigger-pipeline/action.yml b/azure-devops-trigger-pipeline/action.yml
index b38f775..de6be33 100644
--- a/azure-devops-trigger-pipeline/action.yml
+++ b/azure-devops-trigger-pipeline/action.yml
@@ -24,7 +24,7 @@ runs:
   using: 'composite'
   steps:
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@65d7f2d534ac1bc67fcd62888c5f4f3d2cb2b236 # v4
       with:
         python-version: '3.10'