diff --git a/lib/spack/docs/conf.py b/lib/spack/docs/conf.py
index 93c6c02aea2..2de12a5a998 100644
--- a/lib/spack/docs/conf.py
+++ b/lib/spack/docs/conf.py
@@ -128,7 +128,7 @@ def setup(sphinx):
 
 # General information about the project.
 project = u'Spack'
-copyright = u'2013-2019, Lawrence Livermore National Laboratory.'
+copyright = u'2013-2021, Lawrence Livermore National Laboratory.'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the