diff --git a/.github/workflows/actionlint.yml b/.github/workflows/actionlint.yml
index a9b85f22cee..914b2ee6bb4 100644
--- a/.github/workflows/actionlint.yml
+++ b/.github/workflows/actionlint.yml
@@ -13,4 +13,4 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd   # v6.0.2
         with:
           show-progress: false
-      - uses: alphagov/govuk-infrastructure/.github/actions/actionlint@main
+      - uses: alphagov/govuk-infrastructure/.github/actions/actionlint@4001f327c232011bd4ef4e4a7e0f70778ded4365 # main