diff --git a/jjb/so/so-csit.yaml b/jjb/so/so-csit.yaml
index d976f85..ca4d1a3 100644
--- a/jjb/so/so-csit.yaml
+++ b/jjb/so/so-csit.yaml
@@ -1,6 +1,7 @@
 ---
 - project:
     name: so-csit
+    java-version: openjdk11
     jobs:
       - '{project-name}-{stream}-verify-csit-{functionality}'
       - '{project-name}-{stream}-csit-{functionality}'