diff --git a/_templates/cc-by-sa.html b/_templates/cc-by-sa.html
new file mode 100644
index 0000000000000000000000000000000000000000..4f30f01973304f9b8b5077bfaecb3413024b8686
--- /dev/null
+++ b/_templates/cc-by-sa.html
@@ -0,0 +1,3 @@
+<a href="https://creativecommons.org/licenses/by-sa/4.0/">
+    <img src="https://mirrors.creativecommons.org/presskit/buttons/88x31/svg/by-sa.svg"/>
+</a>
diff --git a/conf.py b/conf.py
index ddbe82e86a6cc4c742eccd9f9eee7e39bef143ae..f7094b4254abc376b9e4a6b24c836884441259af 100644
--- a/conf.py
+++ b/conf.py
@@ -153,6 +153,7 @@ html_theme_options = {
     "navbar_end": ["theme-switcher", "navbar-icon-links"],
     # "navbar_persistent": ["search-button"],
     "footer_start": ["copyright"],
+    "footer_center": ["cc-by-sa"],
     "footer_end": ["last-updated"],
     # "content_footer_items": ["last-updated"],
     "secondary_sidebar_items": {