diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f108f85f4a83bc6501c9ead37605f60fbbca74cb..51489b7008734bec85449137a527bcea1d9f37ab 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 ###############################################################################
-# (c) Copyright 2018 CERN for the benefit of the LHCb Collaboration           #
+# (c) Copyright 2020 CERN for the benefit of the LHCb Collaboration           #
 #                                                                             #
 # This software is distributed under the terms of the GNU General Public      #
 # Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".   #
diff --git a/doc/Makefile b/doc/Makefile
index d26fb054d4fc18e2327e32fbca2d626b398eae94..23099b336384ddb1d85e7a8c50b586de967f7216 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,3 +1,13 @@
+###############################################################################
+# (c) Copyright 2020 CERN for the benefit of the LHCb Collaboration           #
+#                                                                             #
+# This software is distributed under the terms of the GNU General Public      #
+# Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".   #
+#                                                                             #
+# In applying this licence, CERN does not waive the privileges and immunities #
+# granted to it by virtue of its status as an Intergovernmental Organization  #
+# or submit itself to any jurisdiction.                                       #
+###############################################################################
 # Minimal makefile for Sphinx documentation
 #
 
diff --git a/doc/conf.py b/doc/conf.py
index 3bdd7f667b246615562dc9ae0867bd23ac4b0699..8a8c710fbcafa2b261a04603eeeebf977977a7ab 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -1,3 +1,13 @@
+###############################################################################
+# (c) Copyright 2020 CERN for the benefit of the LHCb Collaboration           #
+#                                                                             #
+# This software is distributed under the terms of the GNU General Public      #
+# Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".   #
+#                                                                             #
+# In applying this licence, CERN does not waive the privileges and immunities #
+# granted to it by virtue of its status as an Intergovernmental Organization  #
+# or submit itself to any jurisdiction.                                       #
+###############################################################################
 # Configuration file for the Sphinx documentation builder.
 #
 # This file only contains a selection of the most common options. For a full