diff --git a/action.yml b/action.yml
index 27f98dd..cad75ec 100644
--- a/action.yml
+++ b/action.yml
@@ -29,7 +29,7 @@ runs:
   steps:
     # required to compare the pattern on the files in the repo
     - if: inputs.defaults || inputs.default-patterns != ''
-      uses: actions/checkout@v6
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
     - id: neo
       shell: bash