diff --git a/doc/source/conf.py b/doc/source/conf.py
index a375519..5c0e671 100755
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -68,7 +68,7 @@ master_doc = 'contents'
 
 # General information about the project.
 project = u'ctools'
-copyright = u'2014-2017, ctools developers'
+copyright = u'2014-2019, ctools developers'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the