diff --git a/action.yml b/action.yml
index 50c0b17..1b013f4 100644
--- a/action.yml
+++ b/action.yml
@@ -44,7 +44,7 @@ inputs:
 
 runs:
   using: 'docker'
-  image: 'Dockerfile'
+  image: 'docker://ghcr.io/step-security/github-action-markdown-link-check:v1.0.17@sha256:148cb9e302d496abc79ef6ea9a4d3b7759eeaad897af4d51e77f6202c6689608' #v1.0.17
   args:
     - ${{ inputs.use-quiet-mode }}
     - ${{ inputs.use-verbose-mode }}