diff --git a/jenkins.yml b/jenkins.yml
index 7dff6e5..ded5ac3 100644
--- a/jenkins.yml
+++ b/jenkins.yml
@@ -1,6 +1,6 @@
 jenkins:
   systemMessage: "Scheme Jenkins"
-  numExecutors: 0
+  numExecutors: 1
   nodes:
     - permanent:
         mode: NORMAL