diff --git a/content/_data/chaosevents.yaml b/content/_data/chaosevents.yaml
index 231e52b2..0635c42b 100644
--- a/content/_data/chaosevents.yaml
+++ b/content/_data/chaosevents.yaml
@@ -288,7 +288,7 @@ events:
       lon: 49.002196
       lat: 8.38411
   -
-    startdate: 2019-06-28
+    startdate: 2019-06-21
     duration: 3d
     title: "CPU 2019"
     url: https://chaos-party-ulm.de/