diff --git a/.github/workflows/validate-manifests.yaml b/.github/workflows/validate-manifests.yaml
index c0737bbe..6f784f6b 100644
--- a/.github/workflows/validate-manifests.yaml
+++ b/.github/workflows/validate-manifests.yaml
@@ -21,7 +21,7 @@ jobs:
       - name: Code Checkout
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Run ShellCheck
-        uses: ludeeus/action-shellcheck@master
+        uses: ludeeus/action-shellcheck@00b27aa7cb85167568cb48a3838b75f4265f2bca # master
         with:
           version: v0.8.0
           severity: warning