diff --git a/Jenkinsfile b/Jenkinsfile
index 24e4ba2..829c3fb 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -24,8 +24,6 @@ spec:
                   - titan-12
                   - titan-13
                   - titan-14
-                  - titan-15
-                  - titan-17
                   - titan-19
       preferredDuringSchedulingIgnoredDuringExecution:
         - weight: 100