diff --git a/content/events/201409-mitarbeit-opensource/index.md b/content/events/201410-mitarbeit-opensource/index.md
similarity index 85%
rename from content/events/201409-mitarbeit-opensource/index.md
rename to content/events/201410-mitarbeit-opensource/index.md
index f96b4436..43ec8d8c 100644
--- a/content/events/201409-mitarbeit-opensource/index.md
+++ b/content/events/201410-mitarbeit-opensource/index.md
@@ -1,6 +1,6 @@
 ---
 kind: event
-startdate: 2014-09-11T19:30:00Z
+startdate: 2014-10-09T19:30:00Z
 duration: 2h
 title: "Mitarbeit in Opensource-Projekten"
 speakers: