diff --git a/admin/en/source/conf.py b/admin/en/source/conf.py
index 46fc68cb..be83bf67 100644
--- a/admin/en/source/conf.py
+++ b/admin/en/source/conf.py
@@ -68,7 +68,7 @@ def setup(app):
 
 # General information about the project.
 project = u'UForge AppCenter Admin Documentation'
-copyright = u'2019 FUJITSU LIMITED'
+copyright = u'2016-2019 FUJITSU LIMITED'
 author = u'FUJITSU'
 
 # The version info for the project you're documenting, acts as replacement for
diff --git a/apis/en/source/conf.py b/apis/en/source/conf.py
index 14e75adf..dadd31d3 100644
--- a/apis/en/source/conf.py
+++ b/apis/en/source/conf.py
@@ -66,7 +66,7 @@ def setup(app):
 
 # General information about the project.
 project = u'UForge AppCenter APIs'
-copyright = u'2019 FUJITSU LIMITED'
+copyright = u'2016-2019 FUJITSU LIMITED'
 author = u'FUJITSU'
 
 # The version info for the project you're documenting, acts as replacement for
diff --git a/end-user/en/source/conf.py b/end-user/en/source/conf.py
index bff5e54a..ff565d64 100644
--- a/end-user/en/source/conf.py
+++ b/end-user/en/source/conf.py
@@ -66,7 +66,7 @@ def setup(app):
 
 # General information about the project.
 project = u'UForge AppCenter User Documentation'
-copyright = u'2019 FUJITSU LIMITED'
+copyright = u'2016-2019 FUJITSU LIMITED'
 author = u'FUJITSU'
 
 # The version info for the project you're documenting, acts as replacement for