diff --git a/action.yml b/action.yml
index 7e93c3f..c3115d3 100644
--- a/action.yml
+++ b/action.yml
@@ -20,10 +20,10 @@ outputs:
     value: ${{ steps.script.outputs.NETLIFY_OUTPUT }}
   NETLIFY_LOGS_URL:
     description: "URL to Netlify deployment logs"
-    value: ${{ fromJson(steps.script.outputs.NETLIFY_OUTPUT).logs }}
+    value: ${{ steps.script.outputs.NETLIFY_OUTPUT && fromJson(steps.script.outputs.NETLIFY_OUTPUT).logs || '' }}
   NETLIFY_DRAFT_URL:
     description: "URL to draft site"
-    value: ${{ fromJson(steps.script.outputs.NETLIFY_OUTPUT).deploy_url }}
+    value: ${{ steps.script.outputs.NETLIFY_OUTPUT && fromJson(steps.script.outputs.NETLIFY_OUTPUT).deploy_url || '' }}
   NETLIFY_PROD_URL:
     description: "URL to production site"
-    value: ${{ fromJson(steps.script.outputs.NETLIFY_OUTPUT).url }}
+    value: ${{ steps.script.outputs.NETLIFY_OUTPUT && fromJson(steps.script.outputs.NETLIFY_OUTPUT).url || '' }}