diff --git a/Gemfile.lock b/Gemfile.lock
index 8fd8867..1f5f7c0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -245,4 +245,4 @@ DEPENDENCIES
   github-pages
 
 BUNDLED WITH
-   1.17.3
+   2.1.2
diff --git a/_data/rules.yml b/_data/rules.yml
index 8a33244..b1e1ab4 100644
--- a/_data/rules.yml
+++ b/_data/rules.yml
@@ -15,7 +15,7 @@ groups:
           - rules:
             - name: Prometheus job missing
               description: A Prometheus job has disappeared
-              query: 'absent(up{job="my-job"})'
+              query: 'absent(up{job="prometheus"})'
               severity: warning
             - name: Prometheus target missing
               description: A Prometheus target has disappeared. An exporter might be crashed.