diff --git a/examples/jenkins-image-sample.groovy b/examples/jenkins-image-sample.groovy
index 73efa4fe..65f3977f 100644
--- a/examples/jenkins-image-sample.groovy
+++ b/examples/jenkins-image-sample.groovy
@@ -90,7 +90,7 @@ void actualTest() {*/
                                 "sourceStrategy":[
                                     "from":[
                                         "kind":"DockerImage",
-                                        "name":"centos/ruby-22-centos7"
+                                        "name":"centos/ruby-25-centos7"
                                     ]
                                 ]
                             ],