diff --git a/.github/workflows/_config.yml b/.github/workflows/_config.yml
index 6bd3c36..7d6d7ce 100644
--- a/.github/workflows/_config.yml
+++ b/.github/workflows/_config.yml
@@ -1,5 +1,6 @@
 title: LANL executorlib Tutorial
 author: Jan Janssen
+copyright: "2026"
 
 execute:
   execute_notebooks           : off