diff --git a/docs/_config.yml b/docs/_config.yml
index 398a7556e..7386f849a 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -1,5 +1,6 @@
 title: structuretoolkit
 author: Jan Janssen
+copyright: "2026"
 
 execute:
   execute_notebooks           : off
@@ -22,4 +23,4 @@ sphinx:
   - 'sphinx.ext.autosummary'
   config:
     autosummary_generate: True
-    templates_path: ['_templates']
\ No newline at end of file
+    templates_path: ['_templates']