diff --git a/topology/University of Wisconsin/CHTC/CHTC-Spark_downtime.yaml b/topology/University of Wisconsin/CHTC/CHTC-Spark_downtime.yaml
index b084089ad..9f9aa5287 100644
--- a/topology/University of Wisconsin/CHTC/CHTC-Spark_downtime.yaml	
+++ b/topology/University of Wisconsin/CHTC/CHTC-Spark_downtime.yaml	
@@ -4,7 +4,7 @@
   Description: Cluster software upgrades
   Severity: Severe
   StartTime: Oct 01, 2024 13:00 +0000
-  EndTime: Oct 01, 2024 19:00 +0000
+  EndTime: Oct 01, 2024 22:00 +0000
   CreatedTime: Oct 01, 2024 13:30 +0000
   ResourceName: CHTC-Spark-CE1
   Services: